date

date [OPTIONS] [format]

print or set the system date and time

Options

--help, -h

Print help information

--version, -V

Print version information

--date, -d

display time described by STRING, not 'now'

--file, -f

like --date; once for each line of DATEFILE

--iso-8601, -I

output date/time in ISO 8601 format. FMT='date' for date only (the default), 'hours', 'minutes', 'seconds', or 'ns' for date and time to the indicated precision. Example: 2006-08-14T02:34:56-06:00

--rfc-email, -R

output date and time in RFC 5322 format. Example: Mon, 14 Aug 2006 02:34:56 -0600

--rfc-3339

output date/time in RFC 3339 format. FMT='date', 'seconds', or 'ns' for date and time to the indicated precision. Example: 2006-08-14 02:34:56-06:00

--debug

annotate the parsed date, and warn about questionable usage to stderr

--reference, -r

display the last modification time of FILE

--set, -s

set time described by STRING

--universal, -u

print or set Coordinated Universal Time (UTC)