Help Options:

-h, --help

Show help options

--help-all

Show all help options

--help-output

Show output help

--help-commands

Show command options

--help-modifiers

Show output modifiers

Output Options:

--output-as=FORMAT

Specify output format as one of: text (default), xml

--output-to=DEST

Specify file name for output (or "-" for stdout)

Commands:

-n, --now

Display the current date/time

-d, --date=DATE

Parse an ISO 8601 date/time (for example, '2019-09-24 00:30:00 +01:00' or '2019-040')

-p, --period=PERIOD

Parse an ISO 8601 period (interval) with start time (for example, '2005-040/2005-043')

-D, --duration=DURATION

Parse an ISO 8601 duration (for example, 'P1M')

-E, --expected=TEXT

Exit with error status if result does not match this text. Requires: -n or -d

Output modifiers:

-s, --seconds

Show result as a seconds since 0000-001 00:00:00Z

-S, --epoch

Show result as a seconds since EPOCH (1970-001 00:00:00Z)

-L, --local

Show result as a 'local' date/time

-O, --ordinal

Show result as an 'ordinal' date/time

-W, --week

Show result as an 'calendar week' date/time

Application Options:

-$, --version

Display software version and exit

-V, --verbose

Increase debug output (may be specified multiple times)

For more information on the ISO 8601 standard, see https://en.wikipedia.org/wiki/ISO_8601