sip-date man page
sip-date — .TH "sip-date" 1 "Fri Mar 11 2011" "Version 1.12.11" "sofia-sip-utils"
sip-date - .SH "Synopsis"
sip-date [-n] [SIP-date | [YYYYy] [DDd] [HHh] [MMm] [SS[s]]]
sip-date is an utility for printing a SIP date (in the format specified by RFC 1123, but the timezone must always be GMT) or parsing a given SIP date. The date can be given as a SIP date or by giving year, day, hour, minutes and seconds separately.
The sip-date utility takes options as follows:
The sip-date utility prints the date as seconds elapsed since epoch (01 Jan 1900 00:00:00).
You want to convert current time to SIP date:
You want to find out how many seconds there was in 1900's:
$ siptime -n 2000y 3155673600
Report bugs to <firstname.lastname@example.org>.
Pekka Pessi <Pekka -dot- Pessi -at- nokia -dot- com>
Copyright (C) 2005 Nokia Corporation.
This program is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.