This matches if the packet arrival time/date is within a given range. All options are optional, but are ANDed when specified. .TP \fB--datestart\fR \fIYYYY\fR[\fB-\fR\fIMM\fR[\fB-\fR\fIDD\fR[\fBT\fR\fIhh\fR[\fB:\fR\fImm\fR[\fB:\fR\fIss\fR]]]]] .TP \fB--datestop\fR \fIYYYY\fR[\fB-\fR\fIMM\fR[\fB-\fR\fIDD\fR[\fBT\fR\fIhh\fR[\fB:\fR\fImm\fR[\fB:\fR\fIss\fR]]]]] .IP Only match during the given time, which must be in ISO 8601 "T" notation. The possible time range is 1970-01-01T00:00:00 to 2038-01-19T04:17:07. .IP If --datestart or --datestop are not specified, it will default to 1970-01-01 and 2038-01-19, respectively. .TP \fB--timestart\fR \fIhh\fR\fB:\fR\fImm\fR[\fB:\fR\fIss\fR] .TP \fB--timestop\fR \fIhh\fR\fB:\fR\fImm\fR[\fB:\fR\fIss\fR] .IP Only match during the given daytime. The possible time range is 00:00:00 to 23:59:59. Leading zeroes are allowed (e.g. "06:03") and correctly interpreted as base-10. .TP [\fB!\fR] \fB--monthday\fR \fIday\fR[\fB,\fR\fIday\fR...] .IP Only match on the given days of the month. Possible values are \fB1\fR to \fB31\fR. Note that specifying \fB31\fR will of course not match on months which do not have a 31st day; the same goes for 28- or 29-day February. .TP [\fB!\fR] \fB--weekdays\fR \fIday\fR[\fB,\fR\fIday\fR...] .IP Only match on the given weekdays. Possible values are \fBMon\fR, \fBTue\fR, \fBWed\fR, \fBThu\fR, \fBFri\fR, \fBSat\fR, \fBSun\fR, or values from \fB1\fR to \fB7\fR, respectively. You may also use two-character variants (\fBMo\fR, \fBTu\fR, etc.). .TP \fB--utc\fR .IP Interpret the times given for \fB--datestart\fR, \fB--datestop\fR, \fB--timestart\fR and \fB--timestop\fR to be UTC. .TP \fB--localtz\fR .IP Interpret the times given for \fB--datestart\fR, \fB--datestop\fR, \fB--timestart\fR and \fB--timestop\fR to be local kernel time. (Default) .PP EXAMPLES. To match on weekends, use: .IP -m time --weekdays Sa,Su .PP Or, to match (once) on a national holiday block: .IP -m time --datestart 2007-12-24 --datestop 2007-12-27 .PP Since the stop time is actually inclusive, you would need the following stop time to not match the first second of the new day: .IP -m time --datestart 2007-01-01T17:00 --datestop 2007-01-01T23:59:59 .PP During lunch hour: .IP -m time --timestart 12:30 --timestop 13:30 .PP The fourth Friday in the month: .IP -m time --weekdays Fr --monthdays 22,23,24,25,26,27,28 .PP (Note that this exploits a certain mathematical property. It is not possible to say "fourth Thursday OR fourth Friday" in one rule. It is possible with multiple rules, though.)