doc/man/common-trimmer-time-format.txt

   1 [verse]
   2 __YYYY__-__MM__-__DD__ __HH__:__II__[:__SS__[.__NANO__]]
   3 __HH__:__II__[:__SS__[.__NANO__]]
   4 $$[$$-]__SEC__[.__NANO__]
   5
   6 'YYYY'::
   7     4-digit year.
   8
   9 'MM'::
  10     2-digit month (January is `01`).
  11
  12 'DD'::
  13     2-digit day.
  14
  15 'HH'::
  16     2-digit hour (24-hour format).
  17
  18 'II'::
  19     2-digit minute.
  20
  21 'SS'::
  22     2-digit second.
  23
  24 'NANO'::
  25     Nanoseconds (up to nine digits).
  26
  27 'SEC'::
  28     Seconds since origin.