Date Time format in Python

With my long experiences in programming, we have to do lots of deal with DateTime. Here basically I will demonstrate Python’s `string to datetime` object and `datetime to string format`

from datetime import datetime

# First we will make string date to datetime object
# Example string format is: month/day/year 24hours:minute:seconds
dt = datetime.strptime("09/24/2014 23:09:44", "%m/%d/%Y %H:%M:%S")
print type(dt)
# should be <type ‘datetime.datetime’>

# Now we will produce string representation of python’s datetime object
# Format will be week day name, day, full month name, year 12hour:minute:second AM/PM
print dt.strftime("%A, %d %B, %Y%t%l:%M:%S %p")
# should be Wednesday, 24 September, 2014 11:09:44 PM

List of format directives

  • %a – abbreviated weekday name
  • %A – full weekday name
  • %b – abbreviated month name
  • %B – full month name
  • %c – preferred date and time representation
  • %C – century number (the year divided by 100, range 00 to 99)
  • %d – day of the month (01 to 31)
  • %D – same as %m/%d/%y
  • %e – day of the month (1 to 31)
  • %g – like %G, but without the century
  • %G – 4-digit year corresponding to the ISO week number (see %V).
  • %h – same as %b
  • %H – hour, using a 24-hour clock (00 to 23)
  • %I – hour, using a 12-hour clock (01 to 12)
  • %j – day of the year (001 to 366)
  • %m – month (01 to 12)
  • %M – minute
  • %n – newline character
  • %p – either am or pm according to the given time value
  • %r – time in a.m. and p.m. notation
  • %R – time in 24 hour notation
  • %S – second
  • %t – tab character
  • %T – current time, equal to %H:%M:%S
  • %u – weekday as a number (1 to 7), Monday=1. Warning: In Sun Solaris Sunday=1
  • %U – week number of the current year, starting with the first Sunday as the first day of the first week
  • %V – The ISO 8601 week number of the current year (01 to 53), where week 1 is the first week that has at least 4 days in the current year, and with Monday as the first day of the week
  • %W – week number of the current year, starting with the first Monday as the first day of the first week
  • %w – day of the week as a decimal, Sunday=0
  • %x – preferred date representation without the time
  • %X – preferred time representation without the date
  • %y – year without a century (range 00 to 99)
  • %Y – year including the century
  • %Z or %z – time zone or name or abbreviation
  • %% – a literal % character

Courtesy: Tutorial Point

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