Good question. My experience is Platinums get 2PM, never later, even if the hotel is 50% vacant. That said, I am grateful for the perk. When requesting, I always reiterate Platinum status. 2PM sharp seems to be the standard (regardless of the standard check-out time) across North America for Platinums. This is based on experiences in recent months at:
HI Select Montreal Downtown
CP Montreal Airport
HI Toronto Downtown
HI Mississauga Toronto West
CP Miami Airport
CP Tampa Westshore
HI Atlanta Downtown
HI Kingston Waterfront
Same here, they're the most accommodating, by far, with late check out requests; there have even been some occasions when they've allowed me to check out at 9pm if they're not desperate for the room. It tends to be around 4pm with most other ICs I stay at and 2pm-ish for CP and HI properties.
Location: HIX Shenzhen Luohu
Date: 24 March 2013 (stay here often for the last few years)
Elite Status: Platinum Royal Ambassador
Standard check out time: 12noon
Late check out time: 4pm (all the time but sometimes I leave earlier due to early flights)
Programs: SQ TPPS, EK Gold, IHG RA, Marriott Gold Hyatt Diamond, HHonors Gold, UA Premier Gold, TG Silver
Originally Posted by WilcoRoger
If I remember correctly, this is a regular perk of the Club room - which you probably received, as a RA upgrade. (I might confuse it with IC BKK, though)
No, I usually take the Premier room instead of Club access. I have a separate Club arrangement with the hotel. The late check-outs have been granted on a case-by-case basis, although I've never been refused.
Hi BKK ~ Silom always seems to offer 6pm without even asking ,,,,,,so one suspects asking for later would be a breeze
We were offered, without asking, a 6pm check-out in January (because we were British and "all flights back to Europe leave late, so you'll need this").
The lady checking us in assured us that if we wanted to extend this to 7pm or later it wouldn't be a problem, and just to make a request at any time. However, when we asked very early on our day of departure if we could do this it suddenly turned into a problem and we had to gently remind them of the earlier verbal promise, which had the desired effect.
So ... YMMV ... and if 7pm is offered at check-in, take it then!