use @DATE@ or @TIME@ or @SIG@ to timestamp current date

[[Date(2006-03-04T15:14:25)]] [[DateTime(2006-03-04T15:14:25)]]

2006-03-05 2006-03-05 00:13:53

2002-11-13 02:44:10

2002-11-13

2003-05-27

2003-05-27 05:12:10