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→Isoformat
=== Show date ===
$ date
$ date
Will output the system date-time<br />
Will output the system date-time<br />
=== To set new date ==
=== To set new date ===
$ date -s "2 OCT 2006 18:00:00"
$ date -s "2 OCT 2006 18:00:00"
or:
or:
$ date +%Y%m%d -s "20081128"
$ date +%Y%m%d -s "20081128"
=== Set part of the date ===
date -s "2014-12-25 $(date +%H:%M:%S)"
=== To set new time ===
=== To set new time ===
=== To use AM or PM ===
=== To use AM or PM ===
$ date +%T%p -s "6:10:30AM"
$ date +%T%p -s "6:10:30AM"
=== Isoformat ===
date -Ins # With miliseconds
date +"%FT%T%:z" # Without miliseconds
=== Format strings ===
{| class="wikitable"
|-
! %FORMAT String !! Description
|-
| %% || a literal %
|-
| %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 || locale's date and time (e.g., Thu Mar 3 23:05:25 2005)
|-
| %C || century; like %Y, except omit last two digits (e.g., 21)
|-
| %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
|-
| %g || last two digits of year of ISO week number (see %G)
|-
| %G || year of ISO week number (see %V); normally useful only with %V
|-
| %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)
|-
| %n || a newline
|-
| %N || nanoseconds (000000000..999999999)
|-
| %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 || a tab
|-
| %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)
|-
| %V || ISO week number, with Monday as first day of week (01..53)
|-
| %w || day of week (0..6); 0 is Sunday
|-
| %W || week number of year, with Monday as first day of week (00..53)
|-
| %x || locale's date representation (e.g., 12/31/99)
|-
| %X || locale's time representation (e.g., 23:13:48)
|-
| %y || last two digits of year (00..99)
|-
| %Y || year
|-
| %z || +hhmm numeric timezone (e.g., -0400)
|-
| %:z || +hh:mm numeric timezone (e.g., -04:00)
|-
| %::z || +hh:mm:ss numeric time zone (e.g., -04:00:00)
|-
| %:::z || numeric time zone with : to necessary precision (e.g., -04, +05:30)
|-
| %Z || alphabetic time zone abbreviation (e.g., EDT)
|}