ref: 6280c0f17bf3919cf6c2506fec6edfa0a7ec10fe
dir: /sys/man/1/seconds/
.TH SECONDS 1 .SH NAME seconds \- convert human-readable date (and time) to seconds since epoch .SH SYNOPSIS .B seconds .I date \&... .SH DESCRIPTION .I Seconds prints the number of seconds since 1 Jan 1970 corresponding to one or more human-readable .IR date s. Each .I date must be .I one argument; it will usually be necessary to enclose it in quotes. .PP .I Seconds accepts a somewhat wider range of input than just output from .IR date (1). The main requirement is that the date must be fully specified, with a day of month, month and year in any order. The month must be an English name (or abbreviation), not a number, and the year must contain 4 digits. Unambiguous time-zone names are understood (i.e., not .LR IST ) or time zones may be written as .IR ±hhmm . Case is ignored. .SH EXAMPLES Print the names of all files under .L \&. modified since the start of 23 May 2011. .IP .EX du -ta | awk '$1 >= '^`{seconds '23 may 2011'}^' {print $2}' .EE .SH SEE ALSO .IR date (1), .IR du (1), .IR mtime (1), .IR ctime (2) .SH BUGS All-numeric dates, popular in the USA, are simply ambiguous, more so if the year is truncated to 2 digits.