• %a locale’s abbreviated weekday name (e.g., Sun)
  • %A locale’s full weekday name (e.g., Sunday)
  • %b locale’s abbreviated month name (e.g., Jan)
  • %B locale’s full month name (e.g., January)
  • %C century; like %Y, except omit last two digits (e.g., 20)
  • %d day of month (e.g, 01)
  • %D date; same as %m/%d/%y
  • %e day of month, space padded; same as %_d
  • %F full date; same as %Y-%m-%d
  • %h same as %b
  • %H hour (00..23)
  • %I hour (01..12)
  • %j day of year (001..366)
  • %k hour ( 0..23)
  • %l hour ( 1..12)
  • %m month (01..12)
  • %M minute (00..59)
  • %p locale’s equivalent of either AM or PM; blank if not known
  • %P like %p, but lower case
  • %r locale’s 12-hour clock time (e.g., 11:11:04 PM)
  • %R 24-hour hour and minute; same as %H:%M
  • %s seconds since 1970-01-01 00:00:00 UTC
  • %S second (00..60)
  • %T time; same as %H:%M:%S
  • %u day of week (1..7); 1 is Monday
  • %U week number of year, with Sunday as first day of week (00..53)
  • %w day of week (0..6); 0 is Sunday
  • %W week number of year, with Monday as first day of week (00..53)
  • %y last two digits of year (00..99)
  • %Y year
  • %z +hhmm numeric timezone (e.g., -0400)
  • %Z alphabetic time zone abbreviation (e.g., EDT)

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