date.1 - 9base - revived minimalist port of Plan 9 userland to Unix
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       date.1 (1114B)
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            1 .TH DATE 1
            2 .SH NAME
            3 date \- date and time
            4 .SH SYNOPSIS
            5 .B date
            6 [
            7 .I option
            8 ] [
            9 .I seconds
           10 ]
           11 .\" .br
           12 .\" .B clock
           13 .SH DESCRIPTION
           14 Print the date, in the format
           15 .PP
           16 .B
           17         Tue Aug 16 17:03:52 CDT 1977
           18 .PP
           19 The options are
           20 .TP
           21 .B -u
           22 Report Greenwich Mean Time (GMT) rather than local time.
           23 .TP
           24 .B -n
           25 Report the date as the number of seconds since the
           26 epoch, 00:00:00 GMT, January 1, 1970.
           27 .TP
           28 .B -i
           29 Report the date as ISO-8601 without time and timezone suffix.
           30 .TP
           31 .B -t
           32 Report the date as ISO-8601 with time and timezone suffix.
           33 .PP
           34 The conversion from Greenwich Mean Time to local time depends on the
           35 .B $timezone
           36 environment variable; see
           37 .IR ctime (3).
           38 .PP
           39 If the optional argument
           40 .I seconds
           41 is present, it is used as the time to convert rather than
           42 the real time.
           43 .\" .SH FILES
           44 .\" .TF /adm/timezone/local
           45 .\" .TP
           46 .\" .B /env/timezone
           47 .\" Current timezone name and adjustments.
           48 .\" .TP
           49 .\" .B /adm/timezone
           50 .\" A directory containing timezone tables.
           51 .\" .TP
           52 .\" .B /adm/timezone/local
           53 .\" Default timezone file, copied by
           54 .\" .IR init (8)
           55 .\" into
           56 .\" .BR /env/timezone .
           57 .\" .PD
           58 .SH SOURCE
           59 .B \*9/src/date/date.c