When's the earliest you can renew your passport?

[Ako Si Jamie]

You can renew your passport up to 9 months before it expires, so you're cutting it fine on whether you can get the application in and your passport back before you travel.
Some airlines require a passport number when you book as well, so take that into consideration.

It's probably best to use my current passport then. It's actually expiry is on 10th September so does that mean if I leave the Phils before 10th March I'm good to go?