6.12. Datetime Cheatsheet

6.12.1. Python

  • from datetime import datetime, date, time, timedelta, timezone

  • datetime(year, month, day, hour, minute, second, microsecond, tzinfo) - Create a datetime object

  • date(year, month, day) - Create a date object

  • time(hour, minute, second, microsecond) - Create a time object

  • date.today() - Get the current date

  • datetime.now() - Get the current date and time

  • datetime.now(timezone.utc) - Get the current date and time in UTC

  • datetime.datetime.strptime('1969-07-21 02:56:15', '%Y-%m-%d %H:%M:%S') - Parse a string into a datetime object

  • dt.isoformat() - Get the current date and time in ISO 8601 format

  • dt.strftime(dt, '%Y-%m-%d %H:%M:%S') - Format a datetime object as a string

6.12.2. Directives

  • %Y - Year with century as a decimal number, example: '1969'

  • %m - Month as a zero-padded decimal number, example: '07'

  • %d - Day of the month as a zero-padded decimal number, example: '21'

  • %H - Hour (24-hour clock) as a zero-padded decimal number, example: '02'

  • %M - Minute as a zero-padded decimal number, example: '56'

  • %S - Second as a zero-padded decimal number, example: '15'

  • %f - Microsecond as a decimal number, zero-padded on the left, example: '000000'

  • %Z - Time zone name (empty string if the object is naive), example: 'UTC'

  • %z - UTC offset in the form +HHMM or -HHMM (empty string if the object is naive), example: '+0000'

  • %A - Weekday as locale's full name, example: 'Monday'

  • %a - Weekday as locale's abbreviated name, example: 'Mon'

  • %B - Month as locale's full name, example: 'July'

  • %b - Month as locale's abbreviated name, example: 'Jul'

  • %I - Hour (12-hour clock) as a zero-padded decimal number, example: '02'

  • %p - Locale's equivalent of either AM or PM, example: 'AM'

  • %y - Year without century as a zero-padded decimal number

  • %G - ISO 8601 year with century representing the year that contains the greater part of the ISO week (%V)

  • %m - Month as a zero-padded decimal number

  • %B - Month as locale's full name

  • %b - Month as locale's abbreviated name

  • %d - Day of the month as a zero-padded decimal number

  • %a - Weekday as locale's abbreviated name

  • %A - Weekday as locale's full name

  • %u - ISO 8601 weekday as a decimal number where 1 is Monday

  • %w - Weekday as a decimal number, where 0 is Sunday and 6 is Saturday

  • %j - Day of the year as a zero-padded decimal number

  • %H - Hour (24-hour clock) as a zero-padded decimal number

  • %I - Hour (12-hour clock) as a zero-padded decimal number

  • %p - Locale's equivalent of either AM or PM

  • %Z - Time zone name (empty string if the object is naive)

  • %z - UTC offset in the form +HHMM or -HHMM (empty string if the object is naive)

  • %:z - UTC offset in the form ±HH:MM[:SS[.ffffff]] (empty string if the object is naive).

  • %U - Week number of the year (Sunday as the first day of the week) as a zero padded decimal number. All days in a new year preceding the first Sunday are considered to be in week 0

  • %W - Week number of the year (Monday as the first day of the week) as a decimal number. All days in a new year preceding the first Monday are considered to be in week 0

  • %V - ISO 8601 week as a decimal number with Monday as the first day of the week. Week 01 is the week containing Jan 4

  • %c - Locale's appropriate date and time representation

  • %x - Locale's appropriate date representation

  • %X - Locale's appropriate time representation

  • %% - A literal % character

6.12.3. Timezones

  • timezone.utc - UTC timezone

  • from zoneinfo import ZoneInfo

  • ZoneInfo('Africa/Cairo') - Timezone object for Cairo, Egypt

  • ZoneInfo('Asia/Tokyo') - Timezone object for Tokyo, Japan

  • ZoneInfo('Australia/Sydney') - Timezone object for Sydney, Australia

  • ZoneInfo('Europe/Warsaw') - Timezone object for Warsaw, Poland

  • ZoneInfo('Europe/Paris') - Timezone object for Paris, France

  • ZoneInfo('Europe/London') - Timezone object for London, England

  • ZoneInfo('America/New_York') - Timezone object for New York, USA

  • ZoneInfo('America/Los_Angeles') - Timezone object for Los Angeles, USA

  • More timezones: https://python3.info/intermediate/datetime/tzdata.html