The timer is a very good suggestion! If you find gigital ones too expensive, you may try the analog timer for aircons I got them at P1500 a piece.....Ace Hardware (i think).
digital timers have an advantage of being able to set the DAY and time when you want to the device attached to turn on and off.
Example:
M-F 5:50am-12mn on
Sat 8am to 12nn on
Sun off whole day
i would expect something like this, if the authorizing authority did not have a clear idea of their...
Suzuki Fronx