cheatsheets/time.md

title: Time formats

Ruby

Weekday
  %a - Sun
  %A - Sunday
  %w - 0..6 (Sunday is 0)
Year
  %y - 13
  %Y - 2013
Month
  %b - Jan
  %B - January
  %m - 01..12
Day
  %d - 01..31
  %e - 1..31
Time
  %H - Hour of the day, 24-hour clock (00..23)
  %I - Hour of the day, 12-hour clock (01..12)
  %l - Hour of the day ()
  %M - Minute of the hour (00..59)
  %p - Meridian indicator (AM or PM)
  %S - Second of the minute (00..60)
  %Z - Time zone name
Misc
  %j - Day of the year (001..366)
  %% - Literal % character

Moment.js

Weekday
  d         - 4
  dd        - Su
  ddd       - Sun
  dddd      - Sunday
Year
  YY        - 13
  YYYY      - 2013
Month
  M         - 1..12 (Jan is 1)
  MM        - 01..12 (Jan is 1)
  MMM       - Jan
  MMMM      - January
Day
  D         - 6..31
  DD        - 06..31
Time
  H, HH     - 24 hour time
  h, hh     - 12 hour time (use in conjunction with a or A)
  m, mm     - Minutes
  s, ss     - Seconds
  S         - Deciseconds (1/10th of a second)
  SS        - Centiseconds (1/100th of a second)
  SSS       - Milliseconds (1/1000th of a second)
  Z, ZZ     - Timezone offset as `+0700` or `+07:30`
  X         - Unix timestamp
  a, A      - AM/PM
Misc
  DDD, DDDD - Day of year