When you use ABSOULTE time schedules there is a chance that the schedule will NOT fire because Vera was off/reloading/rebooting at the time.
One way to work around this is to have a second timer Fail Safe timer. I would schedule it for a couple of minutes after the first one. Then a Fail Safe condition would fix it, so the rest of your logic will work normally.
NormalTimer On at 6:00:00 Off at 20:00:00
FailSafeTimer On at 6:00:03 Off at 20:00:03
FailSafeCondition NormalTimer != FailSafeTimer
FailSafeCondition Using Advanced Tab
Device: This PLEG Device
ToggleTimer is what “Do it now” uses.
NOTE: That the delta time needs to be longer than than the “Vera Not Running” time. If you often have power outage of 5 minutes you might want to make the delta time 10 minutes.
NOTE: That the Status command will show you the last time you had a Failed Timer start (Last true time for FailSafeCondition).
I will think about building this into PLEG.