Info Catalog coreutils: date invocation coreutils: Date conversion specifiers

coreutils: Time conversion specifiers

 
 21.1.1 Time conversion specifiers
 ---------------------------------
 
 ‘date’ conversion specifiers related to times.
 
 ‘%H’
      hour (‘00’...‘23’)
 ‘%I’
      hour (‘01’...‘12’)
 ‘%k’
      hour, space padded (‘ 0’...‘23’); equivalent to ‘%_H’.  This is a
      GNU extension.
 ‘%l’
      hour, space padded (‘ 1’...‘12’); equivalent to ‘%_I’.  This is a
      GNU extension.
 ‘%M’
      minute (‘00’...‘59’)
 ‘%N’
      nanoseconds (‘000000000’...‘999999999’).  This is a GNU extension.
 ‘%p’
      locale’s equivalent of either ‘AM’ or ‘PM’; blank in many locales.
      Noon is treated as ‘PM’ and midnight as ‘AM’.
 ‘%P’
      like ‘%p’, except lower case.  This is a GNU extension.
 ‘%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 the epoch, i.e., since 1970-01-01 00:00:00 UTC.  Leap
      seconds are not counted unless leap second support is available.
      ⇒%s-examples, for examples.  This is a GNU extension.
 ‘%S’
      second (‘00’...‘60’).  This may be ‘60’ if leap seconds are
      supported.
 ‘%T’
      24-hour hour, minute, and second.  Same as ‘%H:%M:%S’.
 ‘%X’
      locale’s time representation (e.g., ‘23:13:48’)
 ‘%z’
      Four-digit numeric time zone, e.g., ‘-0600’ or ‘+0530’, or ‘-0000’
      if no time zone is determinable.  This value reflects the numeric
      time zone appropriate for the current time, using the time zone
      rules specified by the ‘TZ’ environment variable.  A time zone is
      not determinable if its numeric offset is zero and its abbreviation
      begins with ‘-’.  The time (and optionally, the time zone rules)
      can be overridden by the ‘--date’ option.
 ‘%:z’
      Numeric time zone with ‘:’, e.g., ‘-06:00’ or ‘+05:30’), or
      ‘-00:00’ if no time zone is determinable.  This is a GNU extension.
 ‘%::z’
      Numeric time zone to the nearest second with ‘:’ (e.g., ‘-06:00:00’
      or ‘+05:30:00’), or ‘-00:00:00’ if no time zone is determinable.
      This is a GNU extension.
 ‘%:::z’
      Numeric time zone with ‘:’ using the minimum necessary precision
      (e.g., ‘-06’, ‘+05:30’, or ‘-04:56:02’), or ‘-00’ if no time zone
      is determinable.  This is a GNU extension.
 ‘%Z’
      alphabetic time zone abbreviation (e.g., ‘EDT’), or nothing if no
      time zone is determinable.  See ‘%z’ for how it is determined.
 

Info Catalog coreutils: date invocation coreutils: Date conversion specifiers