[syslog-ng] Filtering on date/time

Hello, This is on a Debian system with syslog-ng 1.6.5-2.2. Is there any way to filter on the log timestamp? For example, suppose I have a (machine|program) that reboots once a day at 0400, and I don't want to log those events. I'd like to be able to set up a filter something like this ... filter match_dailyreboot { not (match("04:0[0-1]:[0-9][0-9]") and program("foo") and (match("Starting a brand new workday") or match("*many annoying daily restart message*") ) ); }; But as I understand the rules, match() only matches on the message. Is there any way in the 1.6.* series to filter on time and other bits? -dean takemori