alosso: measured in P(S)T, almost 10 hours away from the GMT deadline. You can easily play on each PT day and miss the CDP - what YJ said.
The date displayed in my score history has always been tied to GMT. For example, if I played a ranked round at 7:01 PM (EST) on December 14, it displays as being played on December 15. In fact, the St. Andrews score that I recently shot (that displays as December 15) was played sometime around 8:00 PM (EST) on the 14th.
Like I said above, in all the time I've been on here, it's never been wrong and has always been tied to GMT. Also, like I said, if I ever have doubts, I'll check the visual. Nevertheless, my score history has always been an accurate reflection of the days played for CDP.
And, as an aside, there's no "hustle" involved. I just take the time to play because I like the game. The only "benefits" might be if they ever introduce new clubs at the higher levels (above 101). If they do, then I'll be closer to being able to purchase them if I would like to do so.
I've already lost my CDP once (at 780 days). If I lose it again, it's no big deal. That's especially so because I'm very happy with my present clubs and have no desire to purchase anything. But I never said that I "hustle" to get my CDP. So, I'm not sure what that comment is about.
Finally, I "get" when the new day starts and how CDP generally works. All I'm saying is that as I go through the day each day, if I want to see if I played for that day (before 7:00 PM of that day), I can look at my score history.
So, today is December 15 (until 7:00 PM EST for me in WGT land). If I see a score for December 15 in my score history, I know I played. It's nothing more complicated than that. And I really struggle to see how a score listed as being played on December 15 might not be a score for December 15 (with the understanding that, for me, December 15 starts at 7:00 PM EST on the 14th and extends to 6:59 PM EST on the 15th).