hdb比较特殊，是按照the time of submitting the application
The buyer who is a Singapore Permanent Resident must have obtained his Singapore
Permanent Resident status for at least 3 years at the time of submitting the application. Where
an occupier who is a Singapore Permanent Resident is essential to form the family nucleus, the
essential occupier must have obtained his Singapore Permanent Resident status for at least 3
years at the time of submitting the application.
再说了，也不差这几天吧。