If you've gone to bed, woken up, and still see that your daily puzzle limit is used up, the issue may be with your time zone settings.
The daily limits of Puzzles and Puzzle Rush reset daily at midnight, based on your time zone. However, if your time zone is set incorrectly, the reset might happen at an unexpected time.
How to check your time zone
Click 'Settings' in the bottom-left corner of any Chess.com page.
In your profile settings, confirm that your time zone matches where you're currently located.
After updating it to the correct time zone, scroll to the bottom and click 'Save.'
Once set, your puzzles will reset at midnight in your local time zone.