gistfile1.c

        /*
         * Run in UTC timezone, on the off-chance that this operating
         * system does not have a timegm() function, and translates
         * timestamps on the local timescale.
         * See lib/libvarnish/time.c
         */
        AZ(setenv("TZ", "UTC", 1));
        tzset();
        assert(VTIM_parse("Sun, 06 Nov 1994 08:49:37 GMT") == 784111777);
        assert(VTIM_parse("Sunday, 06-Nov-94 08:49:37 GMT") == 784111777);
        assert(VTIM_parse("Sun Nov  6 08:49:37 1994") == 784111777);