2011-03-30 13:49:47 +00:00
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.TH DATE 1
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.SH NAME
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date, clock \- date and time
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.SH SYNOPSIS
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.B date
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[
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.I option
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] [
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.I seconds
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]
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.br
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.B clock
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.SH DESCRIPTION
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Print the date, in the format
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.PP
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.B
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Tue Aug 16 17:03:52 CDT 1977
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.PP
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The options are
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.TP
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.B -u
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Report Greenwich Mean Time (GMT) rather than local time.
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.TP
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.B -n
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Report the date as the number of seconds since the
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epoch, 00:00:00 GMT, January 1, 1970.
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2012-09-01 12:33:39 +00:00
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.TP
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.B -i
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Report the date as ISO-8601 without time and timezone suffix.
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.TP
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.B -t
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Report the date as ISO-8601 with time and timezone suffix.
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2019-09-06 15:25:21 +00:00
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.TP
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.B -m
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Report the date as an email compatible (RFC2822) time stamp.
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2011-03-30 13:49:47 +00:00
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.PP
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The conversion from Greenwich Mean Time to local time depends on the
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.B $timezone
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environment variable; see
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.IR ctime (2).
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.PP
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If the optional argument
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.I seconds
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is present, it is used as the time to convert rather than
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the real time.
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.PP
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.I Clock
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draws a simple analog clock in its window.
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.SH FILES
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.TF /adm/timezone/local
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.TP
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.B /env/timezone
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Current timezone name and adjustments.
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.TP
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.B /adm/timezone
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A directory containing timezone tables.
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.TP
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.B /adm/timezone/local
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Default timezone file, copied by
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.IR init (8)
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into
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.BR /env/timezone .
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.PD
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.SH SOURCE
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.B /sys/src/cmd/date.c
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.br
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.B /sys/src/cmd/clock.c
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