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PACEMAKER(8) System Administration Utilities PACEMAKER(8)


Pacemaker - Part of the Pacemaker cluster resource manager


iso8601 <command> [options]


Display and parse ISO 8601 dates and times


Help Options:

Show help options
Show all help options
Show command options
Show output modifiers


Display the current date/time
Parse an ISO 8601 date/time (for example, '2019-09-24 00:30:00 +01:00' or '2019-040')
Parse an ISO 8601 period (interval) with start time (for example, '2005-040/2005-043')
Parse an ISO 8601 duration (for example, 'P1M')
Exit with error status if result does not match this text. Requires: -n or -d

Output modifiers:

Show result as a seconds since 0000-001 00:00:00Z
Show result as a seconds since EPOCH (1970-001 00:00:00Z)
Show result as a 'local' date/time
Show result as an 'ordinal' date/time
Show result as an 'calendar week' date/time

Application Options:

-$, --version
Display software version and exit
Increase debug output (may be specified multiple times)

For more information on the ISO 8601 standard, see


Written by Andrew Beekhof and the Pacemaker project contributors

July 2024 Pacemaker 2.1.7+20240711.239cba384-1.1