My day starts at like 7 or 8PM (southern Ohio)...
Alosso's comment is very relevant. Do you know when "the day" for CDP starts, and which is the relevant event for the counter? Sure to have fulfilled that at the correct time?
I'm on the EST (LIKE YOU ARE) so my "day" starts at 8pm "RIGHT NOW". When Daylight Savings Time changes, the start of the day changes. Also, under current rules, if you are playing a game when the new day starts, THIS GAME DOES NOT COUNT FOR THE NEW DAY, but is still part of the old day.
That it has happened twice to you indicates some kind of confusion to this rule. Currently I'm working on 2,292 Days In A Row, so yes I watch carefully!