Date used to award status credits

[ontheaisle]

I tried to find this info on Qantas website but with no luck. Can anyone tell me which date Qantas uses when applying status credits? Is it the date the flight commences? I'm looking at flying to the US around my anniversary date and will be returning on a flight which leaves the US on the 31st Jan (my anniversary date), arriving back in Oz on the 2nd Feb. If the status credits are applied to 31st Jan, I will qualify for PS so I'm interested to know if I should look at moving my flights around.

Thanks in advance for any light you can shed on this

 

[eric2011]

Effective date of departure.

 

[ontheaisle]

Thanks eric2011! I figured that would be the logical option but didn't want to assume