def xx {
    .dt := \%*
    xecho "\frpad(\m(dt),38,\32)"
    date \m(dt)
}

echo
echo "C-Kermit 7.0 and later free-format date/time parsing..."
echo "Documentation: http://www.kermitproject.org/ckermit70.html#x1.6"
echo "The first five examples require C-Kermit 9.0.304 Dev.24 or later."
echo "The sixth example is an impossible date."
echo
echo "\frpad(Free-format date,38,\32)Result"

xx 2020:02:29
xx 2020:02:29:07:30:01
xx 2020:02:29 07:30:01
xx 2019:02:28 07:30:01 +1d
xx 2020:02:29 07:30:01 +1d
xx 20190229 07:30:01 +1d
xx 20200229
xx 20010208 10:28:01
xx 19800526 13:07:12
xx 19800526 13:07:12
xx 20010208_10:28:35
xx 18580101:12:00:00
xx 20110208T00:00:00
xx Fri Aug 10 16:38:01 2001
xx Fri Aug 10 16:38:01 GMT 2001
xx Sat, 14 Jul 2001 11:49:29
xx Fri, 24 Mar 2000 14:19:59 EST
xx Tue, 26 Jun 2001 10:19:45 -0400 (EDT)
xx 20020208102835.515
xx now
xx today
xx today +12:30
xx tomorrow
xx yesterday
xx yesterday -1d
xx yesterday -1w
xx yesterday -1y
xx sunday
xx monday +6days
xx tuesday +5days
xx wednesday +4days
xx thursday +3days
xx friday +2days
xx saturday +1day
xx sunday +0days
xx monday 12:34:56 +6days
xx tuesday 12:34:56 +5days
xx wednesday 12:34:56 +4days
xx thursday 12:34:56 +3days
xx friday 12:34:56 +2days
xx saturday 12:34:56 +1day
xx sunday 12:34:56 +1week
xx 18 Sep 2001
xx 18 September 2001
xx 2001 Sept 18
xx 18-Sep-2001
xx 18/09/2001
xx 18.09.2001
xx 18_09_2001
xx 09/18/2001
xx 2001/09/18
xx September 18, 2001
xx Sep-18-2001
xx 20010918
xx Tue, 18 Sep 2001
xx Tue,18 Sep 2001
xx Tue 18 Sep 2001
xx Tuesday 18 Sep 2001
xx Tuesday, 18 Sep 2001
xx Friday, 18 Sep 2001
xx 20010918
xx 20010918123456
xx 7-Oct-77
xx 7-Oct-0077
xx 11:59:59
xx 11:59
xx 11
xx 11:59:59.33
xx 11:59:59.66
xx 03:21:00
xx 3:21:00
xx 15:21:00
xx :21:00
xx ::01
xx 11::59
xx 03:02:01
xx 3:02:01
xx 3:2:1
xx 11:59:59
xx 11:59:59AM
xx 11:59:59A.M.
xx 11:59:59am
xx 11:59:59a.m.
xx 11:59:59PM
xx 11:59:59P.M.
xx 11:59:59pm
xx 11:59:59p.m.
xx 11:30:00 EST
xx 11:30:00 GMT
xx 11:30:00 PST
xx 11:30:00Z
xx 11:30PM GMT
xx 11:30 -0500
xx 11:30 -0800
xx 11:30 +0200
xx 18-Sep-2001 +1day
xx today +1day
xx now+1d
xx + 1 day
xx + 1 day 3:14:42
xx + 7 weeks
xx +1d3:14:42
xx +1w3:14:42
xx +1m3:14:42
xx +1y3:14:42
xx 2 feb 2001 + 10 years
xx 2001-02-08 +10y12
xx 31-dec-1999 23:59:59+00:00:01
xx 28-feb-1996 +1day
xx 28-feb-1997 +1day
xx 28-feb-1997 +1month
xx 28-feb-1997 +1month 11:59:59
xx 28-feb-1997 +20years
xx 28-feb-1997 +8000years
xx 18-Sep-2001 12:34:56 +1-3:23:01
xx 18-Sep-2001 12:34:56 +1d3:23:01
xx 18-Sep-2001 12:34:56 +1 day 3:23:01
xx 11-Aug-2001 12:34:56 -0800
xx 11-Aug-2001 12:34:56 -08:00
xx 11-Aug-2001 12:34:56 -0800
xx 11-Aug-2001 12:34:56 -08:00
xx 11-Aug-2001 12:34:56 -800
xx 11-Aug-2001 12:34:56 -8
xx 11-Aug-2001 12:34:56 -0800 -0800
xx 11-Aug-2001 12:34:56 -0800 -08:00
xx 10-Aug-2001 13:05:23 +1d6:20:34
xx 10-Aug-2001 13:05:23 +1w6:20:34
xx 10-Aug-2001 13:05:23 +1m6:20:34
xx 10-Aug-2001 13:05:23 +1y6:20:34
xx 10-Aug-2001 13:05:23 +1 day 6:20:34
xx 10-Aug-2001 13:05:23 +1 week 6:20:34
xx 10-Aug-2001 13:05:23 +1 month 6:20:34
xx 10-Aug-2001 13:05:23 +1 year 6:20:34
xx 10-Aug-2001 13:05:23+1d6:20:34
xx 10-Aug-2001 13:05:23+1w6:20:34
xx 10-Aug-2001 13:05:23+1m6:20:34
xx 10-Aug-2001 13:05:23+1y6:20:34
exit