rio-0.1.22.0: A standard library for Haskell
Safe HaskellSafe-Inferred
LanguageHaskell2010

RIO.Time

Synopsis

Documentation

pattern May :: MonthOfYear #

formatTime :: FormatTime t => TimeLocale -> String -> t -> String #

Substitute various time-related information for each %-code in the string, as per formatCharacter.

The general form is %<modifier><width><alternate><specifier>, where <modifier>, <width>, and <alternate> are optional.

<modifier>

glibc-style modifiers can be used before the specifier (here marked as z):

%-z
no padding
%_z
pad with spaces
%0z
pad with zeros
%^z
convert to upper case
%#z
convert to lower case (consistently, unlike glibc)

<width>

Width digits can also be used after any modifiers and before the specifier (here marked as z), for example:

%4z
pad to 4 characters (with default padding character)
%_12z
pad with spaces to 12 characters

<alternate>

An optional E character indicates an alternate formatting. Currently this only affects %Z and %z.

%Ez
alternate formatting

<specifier>

For all types (note these three are done by formatTime, not by formatCharacter):

%%
%
%t
tab
%n
newline

TimeZone

For TimeZone (and ZonedTime and UTCTime):

%z
timezone offset in the format ±HHMM
%Ez
timezone offset in the format ±HH:MM
%Z
timezone name (or else offset in the format ±HHMM)
%EZ
timezone name (or else offset in the format ±HH:MM)

LocalTime

For LocalTime (and ZonedTime and UTCTime and UniversalTime):

%c
as dateTimeFmt locale (e.g. %a %b %e %H:%M:%S %Z %Y)

TimeOfDay

For TimeOfDay (and LocalTime and ZonedTime and UTCTime and UniversalTime):

%R
same as %H:%M
%T
same as %H:%M:%S
%X
as timeFmt locale (e.g. %H:%M:%S)
%r
as time12Fmt locale (e.g. %I:%M:%S %p)
%P
day-half of day from (amPm locale), converted to lowercase, am, pm
%p
day-half of day from (amPm locale), AM, PM
%H
hour of day (24-hour), 0-padded to two chars, 00 - 23
%k
hour of day (24-hour), space-padded to two chars, 0 - 23
%I
hour of day-half (12-hour), 0-padded to two chars, 01 - 12
%l
hour of day-half (12-hour), space-padded to two chars, 1 - 12
%M
minute of hour, 0-padded to two chars, 00 - 59
%S
second of minute (without decimal part), 0-padded to two chars, 00 - 60
%q
picosecond of second, 0-padded to twelve chars, 000000000000 - 999999999999.
%Q
decimal point and fraction of second, up to 12 second decimals, without trailing zeros. For a whole number of seconds, %Q omits the decimal point unless padding is specified.

UTCTime and ZonedTime

For UTCTime and ZonedTime:

%s
number of whole seconds since the Unix epoch. For times before the Unix epoch, this is a negative number. Note that in %s.%q and %s%Q the decimals are positive, not negative. For example, 0.9 seconds before the Unix epoch is formatted as -1.1 with %s%Q.

DayOfWeek

For DayOfWeek (and Day and LocalTime and ZonedTime and UTCTime and UniversalTime):

%u
day of week number for Week Date format, 1 (= Monday) - 7 (= Sunday)
%w
day of week number, 0 (= Sunday) - 6 (= Saturday)
%a
day of week, short form (snd from wDays locale), Sun - Sat
%A
day of week, long form (fst from wDays locale), Sunday - Saturday

Month

For Month (and Day and LocalTime and ZonedTime and UTCTime and UniversalTime):

%Y
year, no padding. Note %0Y and %_Y pad to four chars
%y
year of century, 0-padded to two chars, 00 - 99
%C
century, no padding. Note %0C and %_C pad to two chars
%B
month name, long form (fst from months locale), January - December
%b, %h
month name, short form (snd from months locale), Jan - Dec
%m
month of year, 0-padded to two chars, 01 - 12

Day

For Day (and LocalTime and ZonedTime and UTCTime and UniversalTime):

%D
same as %m/%d/%y
%F
same as %Y-%m-%d
%x
as dateFmt locale (e.g. %m/%d/%y)
%d
day of month, 0-padded to two chars, 01 - 31
%e
day of month, space-padded to two chars, 1 - 31
%j
day of year, 0-padded to three chars, 001 - 366
%f
century for Week Date format, no padding. Note %0f and %_f pad to two chars
%V
week of year for Week Date format, 0-padded to two chars, 01 - 53
%U
week of year where weeks start on Sunday (as sundayStartWeek), 0-padded to two chars, 00 - 53
%W
week of year where weeks start on Monday (as mondayStartWeek), 0-padded to two chars, 00 - 53

Duration types

The specifiers for DiffTime, NominalDiffTime, CalendarDiffDays, and CalendarDiffTime are semantically separate from the other types. Specifiers on negative time differences will generally be negative (think rem rather than mod).

NominalDiffTime and DiffTime

Note that a "minute" of DiffTime is simply 60 SI seconds, rather than a minute of civil time. Use NominalDiffTime to work with civil time, ignoring any leap seconds.

For NominalDiffTime and DiffTime:

%w
total whole weeks
%d
total whole days
%D
whole days of week
%h
total whole hours
%H
whole hours of day
%m
total whole minutes
%M
whole minutes of hour
%s
total whole seconds
%Es
total seconds, with decimal point and up to <width> (default 12) decimal places, without trailing zeros. For a whole number of seconds, %Es omits the decimal point unless padding is specified.
%0Es
total seconds, with decimal point and <width> (default 12) decimal places.
%S
whole seconds of minute
%ES
seconds of minute, with decimal point and up to <width> (default 12) decimal places, without trailing zeros. For a whole number of seconds, %ES omits the decimal point unless padding is specified.
%0ES
seconds of minute as two digits, with decimal point and <width> (default 12) decimal places.

CalendarDiffDays

For CalendarDiffDays (and CalendarDiffTime):

%y
total years
%b
total months
%B
months of year
%w
total weeks, not including months
%d
total days, not including months
%D
days of week

CalendarDiffTime

For CalendarDiffTime:

%h
total hours, not including months
%H
hours of day
%m
total minutes, not including months
%M
minutes of hour
%s
total whole seconds, not including months
%Es
total seconds, not including months, with decimal point and up to <width> (default 12) decimal places, without trailing zeros. For a whole number of seconds, %Es omits the decimal point unless padding is specified.
%0Es
total seconds, not including months, with decimal point and <width> (default 12) decimal places.
%S
whole seconds of minute
%ES
seconds of minute, with decimal point and up to <width> (default 12) decimal places, without trailing zeros. For a whole number of seconds, %ES omits the decimal point unless padding is specified.
%0ES
seconds of minute as two digits, with decimal point and <width> (default 12) decimal places.

fromGregorian :: Year -> MonthOfYear -> DayOfMonth -> Day #

Convert from proleptic Gregorian calendar. Invalid values will be clipped to the correct range, month first, then day.

data CalendarDiffDays #

Constructors

CalendarDiffDays 

Instances

Instances details
NFData CalendarDiffDays 
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Methods

rnf :: CalendarDiffDays -> () #

Monoid CalendarDiffDays

Additive

Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Semigroup CalendarDiffDays

Additive

Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Data CalendarDiffDays

Since: time-1.9.2

Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CalendarDiffDays -> c CalendarDiffDays #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CalendarDiffDays #

toConstr :: CalendarDiffDays -> Constr #

dataTypeOf :: CalendarDiffDays -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CalendarDiffDays) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CalendarDiffDays) #

gmapT :: (forall b. Data b => b -> b) -> CalendarDiffDays -> CalendarDiffDays #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CalendarDiffDays -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CalendarDiffDays -> r #

gmapQ :: (forall d. Data d => d -> u) -> CalendarDiffDays -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> CalendarDiffDays -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> CalendarDiffDays -> m CalendarDiffDays #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CalendarDiffDays -> m CalendarDiffDays #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CalendarDiffDays -> m CalendarDiffDays #

Show CalendarDiffDays 
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

Eq CalendarDiffDays 
Instance details

Defined in Data.Time.Calendar.CalendarDiffDays

ISO8601 CalendarDiffDays

PyYmMdD (ISO 8601:2004(E) sec. 4.4.3.2)

Instance details

Defined in Data.Time.Format.ISO8601

scaleCalendarDiffDays :: Integer -> CalendarDiffDays -> CalendarDiffDays #

Scale by a factor. Note that scaleCalendarDiffDays (-1) will not perfectly invert a duration, due to variable month lengths.

class Ord p => DayPeriod p where #

The class of types which can be represented as a period of days.

Since: time-1.12.1

Methods

periodFirstDay :: p -> Day #

Returns the first Day in a period of days.

periodLastDay :: p -> Day #

Returns the last Day in a period of days.

dayPeriod :: Day -> p #

Get the period this day is in.

Instances

Instances details
DayPeriod Day 
Instance details

Defined in Data.Time.Calendar.Days

DayPeriod Month 
Instance details

Defined in Data.Time.Calendar.Month

DayPeriod Quarter 
Instance details

Defined in Data.Time.Calendar.Quarter

newtype Day #

The Modified Julian Day is a standard count of days, with zero being the day 1858-11-17.

Instances

Instances details
NFData Day 
Instance details

Defined in Data.Time.Calendar.Days

Methods

rnf :: Day -> () #

Data Day 
Instance details

Defined in Data.Time.Calendar.Days

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Day -> c Day #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Day #

toConstr :: Day -> Constr #

dataTypeOf :: Day -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Day) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Day) #

gmapT :: (forall b. Data b => b -> b) -> Day -> Day #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Day -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Day -> r #

gmapQ :: (forall d. Data d => d -> u) -> Day -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Day -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Day -> m Day #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Day -> m Day #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Day -> m Day #

Enum Day 
Instance details

Defined in Data.Time.Calendar.Days

Methods

succ :: Day -> Day #

pred :: Day -> Day #

toEnum :: Int -> Day #

fromEnum :: Day -> Int #

enumFrom :: Day -> [Day] #

enumFromThen :: Day -> Day -> [Day] #

enumFromTo :: Day -> Day -> [Day] #

enumFromThenTo :: Day -> Day -> Day -> [Day] #

Ix Day 
Instance details

Defined in Data.Time.Calendar.Days

Methods

range :: (Day, Day) -> [Day] #

index :: (Day, Day) -> Day -> Int #

unsafeIndex :: (Day, Day) -> Day -> Int #

inRange :: (Day, Day) -> Day -> Bool #

rangeSize :: (Day, Day) -> Int #

unsafeRangeSize :: (Day, Day) -> Int #

Eq Day 
Instance details

Defined in Data.Time.Calendar.Days

Methods

(==) :: Day -> Day -> Bool #

(/=) :: Day -> Day -> Bool #

Ord Day 
Instance details

Defined in Data.Time.Calendar.Days

Methods

compare :: Day -> Day -> Ordering #

(<) :: Day -> Day -> Bool #

(<=) :: Day -> Day -> Bool #

(>) :: Day -> Day -> Bool #

(>=) :: Day -> Day -> Bool #

max :: Day -> Day -> Day #

min :: Day -> Day -> Day #

DayPeriod Day 
Instance details

Defined in Data.Time.Calendar.Days

ISO8601 Day

yyyy-mm-dd (ISO 8601:2004(E) sec. 4.1.2.2 extended format)

Instance details

Defined in Data.Time.Format.ISO8601

periodAllDays :: DayPeriod p => p -> [Day] #

A list of all the days in this period.

Since: time-1.12.1

periodLength :: DayPeriod p => p -> Int #

The number of days in this period.

Since: time-1.12.1

periodFromDay :: DayPeriod p => Day -> (p, Int) #

Get the period this day is in, with the 1-based day number within the period.

periodFromDay (periodFirstDay p) = (p,1)

Since: time-1.12.1

periodToDay :: DayPeriod p => p -> Int -> Day #

Inverse of periodFromDay.

Since: time-1.12.1

periodToDayValid :: DayPeriod p => p -> Int -> Maybe Day #

Validating inverse of periodFromDay.

Since: time-1.12.1

type DayOfMonth = Int #

Day of month, in range 1 to 31.

type MonthOfYear = Int #

Month of year, in range 1 (January) to 12 (December).

type Year = Integer #

Year of Common Era (when positive).

pattern December :: MonthOfYear #

The twelve MonthOfYear patterns form a COMPLETE set.

pattern October :: MonthOfYear #

pattern August :: MonthOfYear #

pattern July :: MonthOfYear #

pattern June :: MonthOfYear #

pattern April :: MonthOfYear #

pattern March :: MonthOfYear #

pattern January :: MonthOfYear #

pattern BeforeCommonEra :: Integer -> Year #

Also known as Before Christ. Note that Year 1 = 1 CE, and the previous Year 0 = 1 BCE. CommonEra and BeforeCommonEra form a COMPLETE set.

pattern CommonEra :: Integer -> Year #

Also known as Anno Domini.

isLeapYear :: Year -> Bool #

Is this year a leap year according to the proleptic Gregorian calendar?

pattern YearMonthDay :: Year -> MonthOfYear -> DayOfMonth -> Day #

Bidirectional abstract constructor for the proleptic Gregorian calendar. Invalid values will be clipped to the correct range, month first, then day.

toGregorian :: Day -> (Year, MonthOfYear, DayOfMonth) #

Convert to proleptic Gregorian calendar.

fromGregorianValid :: Year -> MonthOfYear -> DayOfMonth -> Maybe Day #

Convert from proleptic Gregorian calendar. Invalid values will return Nothing

showGregorian :: Day -> String #

Show in ISO 8601 format (yyyy-mm-dd)

gregorianMonthLength :: Year -> MonthOfYear -> DayOfMonth #

The number of days in a given month according to the proleptic Gregorian calendar.

addGregorianMonthsClip :: Integer -> Day -> Day #

Add months, with days past the last day of the month clipped to the last day. For instance, 2005-01-30 + 1 month = 2005-02-28.

addGregorianMonthsRollOver :: Integer -> Day -> Day #

Add months, with days past the last day of the month rolling over to the next month. For instance, 2005-01-30 + 1 month = 2005-03-02.

addGregorianYearsClip :: Integer -> Day -> Day #

Add years, matching month and day, with Feb 29th clipped to Feb 28th if necessary. For instance, 2004-02-29 + 2 years = 2006-02-28.

addGregorianYearsRollOver :: Integer -> Day -> Day #

Add years, matching month and day, with Feb 29th rolled over to Mar 1st if necessary. For instance, 2004-02-29 + 2 years = 2006-03-01.

addGregorianDurationClip :: CalendarDiffDays -> Day -> Day #

Add months (clipped to last day), then add days

addGregorianDurationRollOver :: CalendarDiffDays -> Day -> Day #

Add months (rolling over to next month), then add days

diffGregorianDurationClip :: Day -> Day -> CalendarDiffDays #

Calendrical difference, with as many whole months as possible

diffGregorianDurationRollOver :: Day -> Day -> CalendarDiffDays #

Calendrical difference, with as many whole months as possible. Same as diffGregorianDurationClip for positive durations.

data DayOfWeek #

Instances

Instances details
NFData DayOfWeek 
Instance details

Defined in Data.Time.Calendar.Week

Methods

rnf :: DayOfWeek -> () #

Data DayOfWeek 
Instance details

Defined in Data.Time.Calendar.Week

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> DayOfWeek -> c DayOfWeek #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c DayOfWeek #

toConstr :: DayOfWeek -> Constr #

dataTypeOf :: DayOfWeek -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c DayOfWeek) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c DayOfWeek) #

gmapT :: (forall b. Data b => b -> b) -> DayOfWeek -> DayOfWeek #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> DayOfWeek -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> DayOfWeek -> r #

gmapQ :: (forall d. Data d => d -> u) -> DayOfWeek -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> DayOfWeek -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> DayOfWeek -> m DayOfWeek #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> DayOfWeek -> m DayOfWeek #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> DayOfWeek -> m DayOfWeek #

Enum DayOfWeek

"Circular", so for example [Tuesday ..] gives an endless sequence. Also: fromEnum gives [1 .. 7] for [Monday .. Sunday], and toEnum performs mod 7 to give a cycle of days.

Instance details

Defined in Data.Time.Calendar.Week

Ix DayOfWeek 
Instance details

Defined in Data.Time.Calendar.Week

Read DayOfWeek 
Instance details

Defined in Data.Time.Calendar.Week

Show DayOfWeek 
Instance details

Defined in Data.Time.Calendar.Week

Eq DayOfWeek 
Instance details

Defined in Data.Time.Calendar.Week

Ord DayOfWeek 
Instance details

Defined in Data.Time.Calendar.Week

dayOfWeekDiff :: DayOfWeek -> DayOfWeek -> Int #

dayOfWeekDiff a b = a - b in range 0 to 6. The number of days from b to the next a.

firstDayOfWeekOnAfter :: DayOfWeek -> Day -> Day #

The first day-of-week on or after some day

weekAllDays :: DayOfWeek -> Day -> [Day] #

Returns a week containing the given Day where the first day is the DayOfWeek specified.

Examples:

>>> weekAllDays Sunday (YearMonthDay 2022 02 21)
[YearMonthDay 2022 2 20 .. YearMonthDay 2022 2 26]
>>> weekAllDays Monday (YearMonthDay 2022 02 21)
[YearMonthDay 2022 2 21 .. YearMonthDay 2022 2 27]
>>> weekAllDays Tuesday (YearMonthDay 2022 02 21)
[YearMonthDay 2022 2 15 .. YearMonthDay 2022 2 21]

Since: time-1.12.2

weekFirstDay :: DayOfWeek -> Day -> Day #

Returns the first day of a week containing the given Day.

Examples:

>>> weekFirstDay Sunday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 20
>>> weekFirstDay Monday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 21
>>> weekFirstDay Tuesday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 15

Since: time-1.12.2

weekLastDay :: DayOfWeek -> Day -> Day #

Returns the last day of a week containing the given Day.

Examples:

>>> weekLastDay Sunday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 26
>>> weekLastDay Monday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 27
>>> weekLastDay Tuesday (YearMonthDay 2022 02 21)
YearMonthDay 2022 2 21

Since: time-1.12.2

data DiffTime #

This is a length of time, as measured by a clock. Conversion functions such as fromInteger and realToFrac will treat it as seconds. For example, (0.010 :: DiffTime) corresponds to 10 milliseconds.

It has a precision of one picosecond (= 10^-12 s). Enumeration functions will treat it as picoseconds.

Instances

Instances details
NFData DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

Methods

rnf :: DiffTime -> () #

Data DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> DiffTime -> c DiffTime #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c DiffTime #

toConstr :: DiffTime -> Constr #

dataTypeOf :: DiffTime -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c DiffTime) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c DiffTime) #

gmapT :: (forall b. Data b => b -> b) -> DiffTime -> DiffTime #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> DiffTime -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> DiffTime -> r #

gmapQ :: (forall d. Data d => d -> u) -> DiffTime -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> DiffTime -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> DiffTime -> m DiffTime #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> DiffTime -> m DiffTime #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> DiffTime -> m DiffTime #

Enum DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

Num DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

Read DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

Fractional DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

Real DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

RealFrac DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

Methods

properFraction :: Integral b => DiffTime -> (b, DiffTime) #

truncate :: Integral b => DiffTime -> b #

round :: Integral b => DiffTime -> b #

ceiling :: Integral b => DiffTime -> b #

floor :: Integral b => DiffTime -> b #

Show DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

Eq DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

Ord DiffTime 
Instance details

Defined in Data.Time.Clock.Internal.DiffTime

secondsToDiffTime :: Integer -> DiffTime #

Create a DiffTime which represents an integral number of seconds.

picosecondsToDiffTime :: Integer -> DiffTime #

Create a DiffTime from a number of picoseconds.

diffTimeToPicoseconds :: DiffTime -> Integer #

Get the number of picoseconds in a DiffTime.

data NominalDiffTime #

This is a length of time, as measured by UTC. It has a precision of 10^-12 s.

Conversion functions such as fromInteger and realToFrac will treat it as seconds. For example, (0.010 :: NominalDiffTime) corresponds to 10 milliseconds.

It has a precision of one picosecond (= 10^-12 s). Enumeration functions will treat it as picoseconds.

It ignores leap-seconds, so it's not necessarily a fixed amount of clock time. For instance, 23:00 UTC + 2 hours of NominalDiffTime = 01:00 UTC (+ 1 day), regardless of whether a leap-second intervened.

Instances

Instances details
NFData NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

Methods

rnf :: NominalDiffTime -> () #

Data NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> NominalDiffTime -> c NominalDiffTime #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c NominalDiffTime #

toConstr :: NominalDiffTime -> Constr #

dataTypeOf :: NominalDiffTime -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c NominalDiffTime) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c NominalDiffTime) #

gmapT :: (forall b. Data b => b -> b) -> NominalDiffTime -> NominalDiffTime #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> NominalDiffTime -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> NominalDiffTime -> r #

gmapQ :: (forall d. Data d => d -> u) -> NominalDiffTime -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> NominalDiffTime -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> NominalDiffTime -> m NominalDiffTime #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> NominalDiffTime -> m NominalDiffTime #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> NominalDiffTime -> m NominalDiffTime #

Enum NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

Num NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

Read NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

Fractional NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

Real NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

RealFrac NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

Show NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

Eq NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

Ord NominalDiffTime 
Instance details

Defined in Data.Time.Clock.Internal.NominalDiffTime

secondsToNominalDiffTime :: Pico -> NominalDiffTime #

Create a NominalDiffTime from a number of seconds.

Since: time-1.9.1

nominalDiffTimeToSeconds :: NominalDiffTime -> Pico #

Get the seconds in a NominalDiffTime.

Since: time-1.9.1

getTime_resolution :: DiffTime #

The resolution of getSystemTime, getCurrentTime, getPOSIXTime. On UNIX systems this uses clock_getres, which may be wrong on WSL2.

data UTCTime #

This is the simplest representation of UTC. It consists of the day number, and a time offset from midnight. Note that if a day has a leap second added to it, it will have 86401 seconds.

Constructors

UTCTime 

Fields

Instances

Instances details
NFData UTCTime 
Instance details

Defined in Data.Time.Clock.Internal.UTCTime

Methods

rnf :: UTCTime -> () #

Data UTCTime 
Instance details

Defined in Data.Time.Clock.Internal.UTCTime

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> UTCTime -> c UTCTime #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c UTCTime #

toConstr :: UTCTime -> Constr #

dataTypeOf :: UTCTime -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c UTCTime) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c UTCTime) #

gmapT :: (forall b. Data b => b -> b) -> UTCTime -> UTCTime #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> UTCTime -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> UTCTime -> r #

gmapQ :: (forall d. Data d => d -> u) -> UTCTime -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> UTCTime -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> UTCTime -> m UTCTime #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> UTCTime -> m UTCTime #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> UTCTime -> m UTCTime #

Eq UTCTime 
Instance details

Defined in Data.Time.Clock.Internal.UTCTime

Methods

(==) :: UTCTime -> UTCTime -> Bool #

(/=) :: UTCTime -> UTCTime -> Bool #

Ord UTCTime 
Instance details

Defined in Data.Time.Clock.Internal.UTCTime

ISO8601 UTCTime

yyyy-mm-ddThh:mm:ss[.sss]Z (ISO 8601:2004(E) sec. 4.3.2 extended format)

Instance details

Defined in Data.Time.Format.ISO8601

newtype UniversalTime #

The Modified Julian Date is the day with the fraction of the day, measured from UT midnight. It's used to represent UT1, which is time as measured by the earth's rotation, adjusted for various wobbles.

Constructors

ModJulianDate 

Instances

Instances details
NFData UniversalTime 
Instance details

Defined in Data.Time.Clock.Internal.UniversalTime

Methods

rnf :: UniversalTime -> () #

Data UniversalTime 
Instance details

Defined in Data.Time.Clock.Internal.UniversalTime

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> UniversalTime -> c UniversalTime #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c UniversalTime #

toConstr :: UniversalTime -> Constr #

dataTypeOf :: UniversalTime -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c UniversalTime) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c UniversalTime) #

gmapT :: (forall b. Data b => b -> b) -> UniversalTime -> UniversalTime #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> UniversalTime -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> UniversalTime -> r #

gmapQ :: (forall d. Data d => d -> u) -> UniversalTime -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> UniversalTime -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> UniversalTime -> m UniversalTime #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> UniversalTime -> m UniversalTime #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> UniversalTime -> m UniversalTime #

Eq UniversalTime 
Instance details

Defined in Data.Time.Clock.Internal.UniversalTime

Ord UniversalTime 
Instance details

Defined in Data.Time.Clock.Internal.UniversalTime

addUTCTime :: NominalDiffTime -> UTCTime -> UTCTime #

addUTCTime a b = a + b

diffUTCTime :: UTCTime -> UTCTime -> NominalDiffTime #

diffUTCTime a b = a - b

data CalendarDiffTime #

Instances

Instances details
NFData CalendarDiffTime 
Instance details

Defined in Data.Time.LocalTime.Internal.CalendarDiffTime

Methods

rnf :: CalendarDiffTime -> () #

Monoid CalendarDiffTime

Additive

Instance details

Defined in Data.Time.LocalTime.Internal.CalendarDiffTime

Semigroup CalendarDiffTime

Additive

Instance details

Defined in Data.Time.LocalTime.Internal.CalendarDiffTime

Data CalendarDiffTime

Since: time-1.9.2

Instance details

Defined in Data.Time.LocalTime.Internal.CalendarDiffTime

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CalendarDiffTime -> c CalendarDiffTime #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CalendarDiffTime #

toConstr :: CalendarDiffTime -> Constr #

dataTypeOf :: CalendarDiffTime -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CalendarDiffTime) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CalendarDiffTime) #

gmapT :: (forall b. Data b => b -> b) -> CalendarDiffTime -> CalendarDiffTime #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CalendarDiffTime -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CalendarDiffTime -> r #

gmapQ :: (forall d. Data d => d -> u) -> CalendarDiffTime -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> CalendarDiffTime -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> CalendarDiffTime -> m CalendarDiffTime #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CalendarDiffTime -> m CalendarDiffTime #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CalendarDiffTime -> m CalendarDiffTime #

Show CalendarDiffTime 
Instance details

Defined in Data.Time.LocalTime.Internal.CalendarDiffTime

Eq CalendarDiffTime 
Instance details

Defined in Data.Time.LocalTime.Internal.CalendarDiffTime

ISO8601 CalendarDiffTime

PyYmMdDThHmMs[.sss]S (ISO 8601:2004(E) sec. 4.4.3.2)

Instance details

Defined in Data.Time.Format.ISO8601

scaleCalendarDiffTime :: Integer -> CalendarDiffTime -> CalendarDiffTime #

Scale by a factor. Note that scaleCalendarDiffTime (-1) will not perfectly invert a duration, due to variable month lengths.

data TimeZone #

A TimeZone is a whole number of minutes offset from UTC, together with a name and a "just for summer" flag.

Constructors

TimeZone 

Fields

Instances

Instances details
NFData TimeZone 
Instance details

Defined in Data.Time.LocalTime.Internal.TimeZone

Methods

rnf :: TimeZone -> () #

Data TimeZone 
Instance details

Defined in Data.Time.LocalTime.Internal.TimeZone

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> TimeZone -> c TimeZone #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c TimeZone #

toConstr :: TimeZone -> Constr #

dataTypeOf :: TimeZone -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c TimeZone) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c TimeZone) #

gmapT :: (forall b. Data b => b -> b) -> TimeZone -> TimeZone #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> TimeZone -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> TimeZone -> r #

gmapQ :: (forall d. Data d => d -> u) -> TimeZone -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> TimeZone -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> TimeZone -> m TimeZone #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> TimeZone -> m TimeZone #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> TimeZone -> m TimeZone #

Show TimeZone

This only shows the time zone name, or offset if the name is empty.

Instance details

Defined in Data.Time.LocalTime.Internal.TimeZone

Eq TimeZone 
Instance details

Defined in Data.Time.LocalTime.Internal.TimeZone

Ord TimeZone 
Instance details

Defined in Data.Time.LocalTime.Internal.TimeZone

ISO8601 TimeZone

±hh:mm (ISO 8601:2004(E) sec. 4.2.5.1 extended format)

Instance details

Defined in Data.Time.Format.ISO8601

minutesToTimeZone :: Int -> TimeZone #

Create a nameless non-summer timezone for this number of minutes.

hoursToTimeZone :: Int -> TimeZone #

Create a nameless non-summer timezone for this number of hours.

timeZoneOffsetString' :: Maybe Char -> TimeZone -> String #

Text representing the offset of this timezone, such as "-0800" or "+0400" (like %z in formatTime), with arbitrary padding.

timeZoneOffsetString :: TimeZone -> String #

Text representing the offset of this timezone, such as "-0800" or "+0400" (like %z in formatTime).

utc :: TimeZone #

The UTC time zone.

data TimeOfDay #

Time of day as represented in hour, minute and second (with picoseconds), typically used to express local time of day.

TimeOfDay 24 0 0 is considered invalid for the purposes of makeTimeOfDayValid, as well as reading and parsing, but valid for ISO 8601 parsing in Data.Time.Format.ISO8601.

Constructors

TimeOfDay 

Fields

  • todHour :: Int

    range 0 - 23

  • todMin :: Int

    range 0 - 59

  • todSec :: Pico

    Note that 0 <= todSec < 61, accomodating leap seconds. Any local minute may have a leap second, since leap seconds happen in all zones simultaneously

Instances

Instances details
NFData TimeOfDay 
Instance details

Defined in Data.Time.LocalTime.Internal.TimeOfDay

Methods

rnf :: TimeOfDay -> () #

Data TimeOfDay 
Instance details

Defined in Data.Time.LocalTime.Internal.TimeOfDay

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> TimeOfDay -> c TimeOfDay #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c TimeOfDay #

toConstr :: TimeOfDay -> Constr #

dataTypeOf :: TimeOfDay -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c TimeOfDay) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c TimeOfDay) #

gmapT :: (forall b. Data b => b -> b) -> TimeOfDay -> TimeOfDay #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> TimeOfDay -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> TimeOfDay -> r #

gmapQ :: (forall d. Data d => d -> u) -> TimeOfDay -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> TimeOfDay -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> TimeOfDay -> m TimeOfDay #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> TimeOfDay -> m TimeOfDay #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> TimeOfDay -> m TimeOfDay #

Show TimeOfDay 
Instance details

Defined in Data.Time.LocalTime.Internal.TimeOfDay

Eq TimeOfDay 
Instance details

Defined in Data.Time.LocalTime.Internal.TimeOfDay

Ord TimeOfDay 
Instance details

Defined in Data.Time.LocalTime.Internal.TimeOfDay

ISO8601 TimeOfDay

hh:mm:ss[.sss] (ISO 8601:2004(E) sec. 4.2.2.2, 4.2.2.4(a) extended format)

Instance details

Defined in Data.Time.Format.ISO8601

midnight :: TimeOfDay #

Hour zero

midday :: TimeOfDay #

Hour twelve

timeToDaysAndTimeOfDay :: NominalDiffTime -> (Integer, TimeOfDay) #

Convert a period of time into a count of days and a time of day since midnight. The time of day will never have a leap second.

daysAndTimeOfDayToTime :: Integer -> TimeOfDay -> NominalDiffTime #

Convert a count of days and a time of day since midnight into a period of time.

utcToLocalTimeOfDay :: TimeZone -> TimeOfDay -> (Integer, TimeOfDay) #

Convert a time of day in UTC to a time of day in some timezone, together with a day adjustment.

localToUTCTimeOfDay :: TimeZone -> TimeOfDay -> (Integer, TimeOfDay) #

Convert a time of day in some timezone to a time of day in UTC, together with a day adjustment.

timeToTimeOfDay :: DiffTime -> TimeOfDay #

Get the time of day given a time since midnight. Time more than 24h will be converted to leap-seconds.

timeOfDayToTime :: TimeOfDay -> DiffTime #

Get the time since midnight for a given time of day.

dayFractionToTimeOfDay :: Rational -> TimeOfDay #

Get the time of day given the fraction of a day since midnight.

timeOfDayToDayFraction :: TimeOfDay -> Rational #

Get the fraction of a day since midnight given a time of day.

data LocalTime #

A simple day and time aggregate, where the day is of the specified parameter, and the time is a TimeOfDay. Conversion of this (as local civil time) to UTC depends on the time zone. Conversion of this (as local mean time) to UT1 depends on the longitude.

Constructors

LocalTime 

Instances

Instances details
NFData LocalTime 
Instance details

Defined in Data.Time.LocalTime.Internal.LocalTime

Methods

rnf :: LocalTime -> () #

Data LocalTime 
Instance details

Defined in Data.Time.LocalTime.Internal.LocalTime

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> LocalTime -> c LocalTime #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c LocalTime #

toConstr :: LocalTime -> Constr #

dataTypeOf :: LocalTime -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c LocalTime) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c LocalTime) #

gmapT :: (forall b. Data b => b -> b) -> LocalTime -> LocalTime #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> LocalTime -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> LocalTime -> r #

gmapQ :: (forall d. Data d => d -> u) -> LocalTime -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> LocalTime -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> LocalTime -> m LocalTime #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> LocalTime -> m LocalTime #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> LocalTime -> m LocalTime #

Show LocalTime 
Instance details

Defined in Data.Time.LocalTime.Internal.LocalTime

Eq LocalTime 
Instance details

Defined in Data.Time.LocalTime.Internal.LocalTime

Ord LocalTime 
Instance details

Defined in Data.Time.LocalTime.Internal.LocalTime

ISO8601 LocalTime

yyyy-mm-ddThh:mm:ss[.sss] (ISO 8601:2004(E) sec. 4.3.2 extended format)

Instance details

Defined in Data.Time.Format.ISO8601

addLocalTime :: NominalDiffTime -> LocalTime -> LocalTime #

addLocalTime a b = a + b

diffLocalTime :: LocalTime -> LocalTime -> NominalDiffTime #

diffLocalTime a b = a - b

utcToLocalTime :: TimeZone -> UTCTime -> LocalTime #

Get the local time of a UTC time in a time zone.

localTimeToUTC :: TimeZone -> LocalTime -> UTCTime #

Get the UTC time of a local time in a time zone.

ut1ToLocalTime :: Rational -> UniversalTime -> LocalTime #

Get the local time of a UT1 time on a particular meridian (in degrees, positive is East).

localTimeToUT1 :: Rational -> LocalTime -> UniversalTime #

Get the UT1 time of a local time on a particular meridian (in degrees, positive is East).

data TimeLocale #

Constructors

TimeLocale 

Fields

defaultTimeLocale :: TimeLocale #

Locale representing American usage.

knownTimeZones contains only the ten time-zones mentioned in RFC 822 sec. 5: "UT", "GMT", "EST", "EDT", "CST", "CDT", "MST", "MDT", "PST", "PDT". Note that the parsing functions will regardless parse "UTC", single-letter military time-zones, and +HHMM format.

iso8601DateFormat :: Maybe String -> String #

Construct format string according to ISO-8601.

The Maybe String argument allows to supply an optional time specification. E.g.:

iso8601DateFormat Nothing            == "%Y-%m-%d"           -- i.e. YYYY-MM-DD
iso8601DateFormat (Just "%H:%M:%S")  == "%Y-%m-%dT%H:%M:%S"  -- i.e. YYYY-MM-DDTHH:MM:SS

rfc822DateFormat :: String #

Format string according to RFC822.

class ParseTime t #

The class of types which can be parsed given a UNIX-style time format string.

Minimal complete definition

parseTimeSpecifier, buildTime

class FormatTime t #

Minimal complete definition

formatCharacter

data ZonedTime #

A local time together with a time zone.

There is no Eq instance for ZonedTime. If you want to compare local times, use zonedTimeToLocalTime. If you want to compare absolute times, use zonedTimeToUTC.

Instances

Instances details
NFData ZonedTime 
Instance details

Defined in Data.Time.LocalTime.Internal.ZonedTime

Methods

rnf :: ZonedTime -> () #

Data ZonedTime 
Instance details

Defined in Data.Time.LocalTime.Internal.ZonedTime

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> ZonedTime -> c ZonedTime #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c ZonedTime #

toConstr :: ZonedTime -> Constr #

dataTypeOf :: ZonedTime -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c ZonedTime) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c ZonedTime) #

gmapT :: (forall b. Data b => b -> b) -> ZonedTime -> ZonedTime #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> ZonedTime -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> ZonedTime -> r #

gmapQ :: (forall d. Data d => d -> u) -> ZonedTime -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> ZonedTime -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> ZonedTime -> m ZonedTime #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> ZonedTime -> m ZonedTime #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> ZonedTime -> m ZonedTime #

Show ZonedTime

For the time zone, this only shows the name, or offset if the name is empty.

Instance details

Defined in Data.Time.LocalTime.Internal.ZonedTime

ISO8601 ZonedTime

yyyy-mm-ddThh:mm:ss[.sss]±hh:mm (ISO 8601:2004(E) sec. 4.3.2 extended format)

Instance details

Defined in Data.Time.Format.ISO8601

parseTimeM #

Arguments

:: (MonadFail m, ParseTime t) 
=> Bool

Accept leading and trailing whitespace?

-> TimeLocale

Time locale.

-> String

Format string.

-> String

Input string.

-> m t

Return the time value, or fail if the input could not be parsed using the given format.

Parses a time value given a format string. Missing information will be derived from 1970-01-01 00:00 UTC (which was a Thursday). Supports the same %-codes as formatTime, including %-, %_ and %0 modifiers, however padding widths are not supported. Case is not significant in the input string. Some variations in the input are accepted:

%z %Ez
accepts any of ±HHMM or ±HH:MM.
%Z %EZ
accepts any string of letters, or any of the formats accepted by %z.
%0Y
accepts exactly four digits.
%0G
accepts exactly four digits.
%0C
accepts exactly two digits.
%0f
accepts exactly two digits.

For example, to parse a date in YYYY-MM-DD format, while allowing the month and date to have optional leading zeros (notice the - modifier used for %m and %d):

Prelude Data.Time> parseTimeM True defaultTimeLocale "%Y-%-m-%-d" "2010-3-04" :: Maybe Day
Just 2010-03-04

parseTimeMultipleM #

Arguments

:: (MonadFail m, ParseTime t) 
=> Bool

Accept leading and trailing whitespace?

-> TimeLocale

Time locale.

-> [(String, String)]

Pairs of (format string, input string).

-> m t

Return the time value, or fail if the input could not be parsed using the given format.

Parses a time value given a list of pairs of format and input. Resulting value is constructed from all provided specifiers.

parseTimeOrError #

Arguments

:: ParseTime t 
=> Bool

Accept leading and trailing whitespace?

-> TimeLocale

Time locale.

-> String

Format string.

-> String

Input string.

-> t

The time value.

Parse a time value given a format string. Fails if the input could not be parsed using the given format. See parseTimeM for details.

readSTime #

Arguments

:: ParseTime t 
=> Bool

Accept leading whitespace?

-> TimeLocale

Time locale.

-> String

Format string

-> ReadS t 

Parse a time value given a format string. See parseTimeM for details.

readPTime #

Arguments

:: ParseTime t 
=> Bool

Accept leading whitespace?

-> TimeLocale

Time locale.

-> String

Format string

-> ReadP t 

Parse a time value given a format string. See parseTimeM for details.