"-T.period"
matches if the current time is in the specified time period,
where period is represented as "hour1-hour2"
which means "from hour1:00:00 to hour2:59:59".
Example:
PERMIT="*:-T.9-16:hostList1" PERMIT="*:-T.17-8:hostList2"
// hostList1 is permitted during office hours whereas
// hostList2 is permitted non-office hours.
The complete format of period is like this:
[wW]HH[MM][-HH[MM]].
A time period in a week is represented with "wW" where W
expresses a day in a week ranging from "0" to "6" according to Sunday
through Saturday. Sunday can be expressed as "7" too for convenience.
Example:
-T.w5-0 // Friday through Sunday
-T.w5-7 // Friday through Sunday
-T.w51730-10830 // from 5:30pm on Friday to 8:30am on Monday