Timeperiod syntax help

Dear Forum

i want to stop nagios warnings between 1am and 3am everyday.

If I used my notification_period as

Sunday 03:00-01:00

and so on for other days, I does not seem to work. Nagios does not report any thing if something happens at 1pm.

It seems to work as expected if I use check_period as above. This is why I used that format since when I used like that
with check_period it works. Can anyone confirm this?

FYI, I am now using notification_period as 00:00-01:00,03:00-24:00

Thanks

mr.wu