guest; just go ahead and p-lug it in, the timer may?? may be incorrect ! perry

Check the microwave manual first as the microwave may possibly be able to operate on either supply voltages and frequencies.

If not you will need an ac converter suitably rated to the current rating of the microwave (check that manual again). As for price, if you can find such a converter (which are not that common) it will likely be expensive (perhaps more than half or more of the cost of the microwave).

Bare in mind that it is not common to do this (especially with appliances like microwaves), you are better off selling the microwave and buying a new one in the Philippines.

50 to 60Hz converter is not common call the manufacture and ask them about the freq. difference.