Differences between revisions 3 and 10 (spanning 7 versions)

Python Datetime

datetime is a module providing utilities and APIs for working with dates, times, and timezones.

Contents

Python Datetime

Date

See here.

Datetime

See here.

Time

See here.

TimeDelta

See here.

TimeZone

A datetime.timezone represents a fixed offset from UTC.

To access the UTC timezone, use the class attribute datetime.timezone.utc.

import datetime

est = datetime.timezone(datetime.timedelta(hours=-5))

TZInfo

An abstract base class for datetime.timezone. Not to be used directly.

StrFTime and StrPTime

Directive	Meaning	Example Values
`%a`	weekday in locale abbreviated name	Sun
`%A`	weekday in locale full name	Sunday
`%w`	weekday as an integer	0 (as Sunday), 6 (as Saturday)
`%d`	day of the month as a zero-padded integer	01
`%b`	month in locale abbreviated name	Jan
`%B`	month in locale full name	January
`%m`	month as a zero-padded integer	01
`%y`	year as a zero-padded two-digit integer	00
`%Y`	year as a zero-padded four-digit integer	0001
`%H`	24-hour clock hour as a zero-padded integer	00
`%I`	12-hour clock hour as a zero-padded integer	01
`%p`	locale equivalent of AM/PM.	AM
`%M`	minute as a zero-padded integer	00
`%S`	second as a zero-padded integer	00
`%f`	microsecond as a zero-padded six-digit integer	000000
`%z`	UTC offset in the form ±HHMM[SS[.ffffff]], or empty if the object is naive	+0000, -0400, +1030, +063415, -030712.345216
`%Z`	time zone name, or empty if the object is naive	UTC
`%j`	day of the year as a zero-padded integer	001
`%U`	week of the year as a zero-padded two-digit integer; all days preceding the first Sunday are in week 0	00
`%W`	week of the year as a zero-padded two-digit integer; all days preceding the first Monday are in week 0	00
`%c`	locale datetime representation	Tue Aug 16 21:30:00 1988
`%x`	locale date representation	08/16/1988
`%X`	locale time representation	21:30:00
`%%`	literal %
`%G`	year that contains the greater part of the ISO week (`%V`) zero-padded four-digit integer	0001
`%u`	weekday as an integer	1 (as Monday), 7 (as Sunday)
`%V`	week of the year as a zero-padded two-digit number; week 01 is the week beginning on a Monday that contains January 4th; all preceding days belong to the prior year	01

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+'''`datetime`''' is a module providing utilities and APIs for working with dates, times, and timezones.
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+== Datetime ==

See [[Python/Datetime/Datetime|here]].

----



== Time ==

See [[Python/Datetime/Time|here]].

----
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-A `datetime.timedelta` object stores some duration of time as a tuple of days, seconds, and milliseconds.
+See [[Python/Datetime/TimeDelta|here]].
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-It is constructed as:
+----



== TimeZone ==

A `datetime.timezone` represents a fixed offset from UTC.

To access the UTC timezone, use the class attribute `datetime.timezone.utc`.
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-t1 = datetime.timedelta(days=3, seconds=2, milliseconds=1)
+est = datetime.timezone(datetime.timedelta(hours=-5))
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-=== Operations ===
+== TZInfo ==
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-`datetime.timedelta` objects can be used with the following [[Python/Builtins/Operators|operators]] and [[Python/Builtins/Functions|functions]].

||'''Operation'''        ||'''Meaning'''                                                  ||
||`t1 + t2`              ||sum                                                            ||
||`t1 - t2`              ||difference                                                     ||
||`t1 * i`               ||multiplication by integer                                      ||
||`t1 * f`               ||multiplication by float rounded to nearest even microsecond    ||
||`t1 / t2`              ||division of `t1` in terms of `t2`, returning a float           ||
||`t1 / n`               ||division by a number rounded to nearest even microsecond       ||
||`t1 // i`              ||floored division by an integer                                 ||
||`t1 // t2`             ||floored division of `t1` in terms of `t2`, returning an integer||
||`t1 % t2`              ||the remainder of `t1` from `t1 // t2`                          ||
||`q, r = divmod(t1, t2)`||`q = t1 // t2` and `r = t1 % t2`                               ||
||`-t1`                  ||`datetime.timedelta(-t1.days, -t1.seconds, -t1.microseconds)`  ||
||`abs(t1)`              ||`t` if t >= 0 else -t``                                        ||
||`str(t1)`              ||returns a string like `[D day[s], ][H]H:MM:SS[.UUUUUU]`        ||
||`repr(t1)`             ||returns a string constructor call                              ||

Some of these operations are not safe from overflows.
+An abstract base class for `datetime.timezone`. Not to be used directly.
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-=== Total_Seconds ===
+== StrFTime and StrPTime ==
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-Convert the stored days, seconds, and milliseconds into just seconds.
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-Equivalent to:
+||'''Directive'''||'''Meaning'''||'''Example Values'''||
||`%a`||weekday in locale abbreviated name||Sun||
||`%A`||weekday in locale full name||Sunday||
||`%w`||weekday as an integer||0 ''(as Sunday)'', 6 ''(as Saturday)''||
||`%d`||day of the month as a zero-padded integer||01||
||`%b`||month in locale abbreviated name||Jan||
||`%B`||month in locale full name||January||
||`%m`||month as a zero-padded integer||01||
||`%y`||year as a zero-padded two-digit integer||00||
||`%Y`||year as a zero-padded four-digit integer||0001||
||`%H`||24-hour clock hour as a zero-padded integer||00||
||`%I`||12-hour clock hour as a zero-padded integer||01||
||`%p`||locale equivalent of AM/PM.||AM||
||`%M`||minute as a zero-padded integer||00||
||`%S`||second as a zero-padded integer||00||
||`%f`||microsecond as a zero-padded six-digit integer||000000||
||`%z`||UTC offset in the form ±HHMM[SS[.ffffff]], or empty if the object is naive||+0000, -0400, +1030, +063415, -030712.345216||
||`%Z`||time zone name, or empty if the object is naive||UTC||
||`%j`||day of the year as a zero-padded integer||001||
||`%U`||week of the year as a zero-padded two-digit integer; all days preceding the first Sunday are in week 0||00||
||`%W`||week of the year as a zero-padded two-digit integer; all days preceding the first Monday are in week 0||00||
||`%c`||locale datetime representation||Tue Aug 16 21:30:00 1988||
||`%x`||locale date representation||08/16/1988||
||`%X`||locale time representation||21:30:00||
||`%%`||literal %|| ||
||`%G`||year that contains the greater part of the ISO week (`%V`) zero-padded four-digit integer||0001||
||`%u`||weekday as an integer||1 ''(as Monday)'', 7 ''(as Sunday)''||
||`%V`||week of the year as a zero-padded two-digit number; week 01 is the week beginning on a Monday that contains January 4th; all preceding days belong to the prior year||01||
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-{{{
import datetime
+----
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-t1 = datetime.timedelta(days=3)
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-seconds = t1 / datetime.timedelta(seconds=1)
}}}
+== See also ==

[[https://docs.python.org/3/library/datetime.html|Python datetime module documentation]]

[[https://pymotw.com/3/datetime/|Python Module of the Day article for datetime]]

Diff for "Python/Datetime"

Python Datetime

Date

Datetime

Time

TimeDelta

TimeZone

TZInfo

StrFTime and StrPTime

See also