3 months till my passport expires

I am from Philippines planned to go to Hongkong for my Honeymoon on February 2013 but my passport will expire on May 2013. I was about to booked a flight but the website states at least 7 months til the passport expires. I also take a look on Hongkong immigration it states that at least 1 month. I am a bit confused at the moment which one to follow. I don't want to booked it yet as I dont want to take risk with such amount of money for the flights and hotels. Please help me.