Try moving time back to 7:30 and see if that works.
You posted under dual analog timer.
You can experiment with analog timer by manually rotating the dials using fingers. Unplug all yellow daytime outlets, but but leave blue nighttime outlets plugged-in and then rotate dial.
Try same thing with digital, except you have to wait for hours to pass.
Line noise can affect electronic timers. Use cheap circuit analyzer from home center to check outlets.
Try different load on blue outlets and then yellow outlets to see if specific fan-light-motor is causing problems for timer.
It is also possible that timer is defective.
After discovering exactly what problem is, add a comment here so your work will carry forward to others with same-similar question.
For folks wanting to see zilla timers with manuals and images:
http://waterheatertimer.org/GE-timers-and-manuals.html#zillaAdd a comment for more free help
Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.