ZILLA POWER CENTER

Copy following link:
http://waterheatertimer.org/GE-timers-and-manuals.html#zilla

The blue outlets are for nighttime operation, and yellow for daytime
Add more detail to question like what you have programmed, what you are operating, and where each light is plugged in.

Gene
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Copy following link to identify timer:
http://waterheatertimer.org/GE-timers-and-manuals.html#zilla
Is this a new timer??? Or old timer that stopped working?
Replace battery.
Press reset button to clear all memory traces before programming.
Check programming for overlaps and mismatched day(s) of operation.
Test outlet for correct polarity and grounding using circuit analyzer.
Make sure light bulb is turned ON. Timers do not reach out and rotate on-off switch.
Make sure outlet has at least 80% rated voltage shown on load label. For example 115 volts x 80% = 92 volts

About your specific programming needs:
Zilla selects 12 o'clock as changeover time between am-pm.
So if you want 8:02 to 7:59 operation, then that is under the 12 hours, but it crosses the 12 o'clock am-pm changeover.
Workaround: Shorten your times to less than 12 hours just like you have done.
But set current time differently so 8-8 falls under either am or pm, but does not cross am-pm. The timer does not actually know what the current time is, so simply fudge by amount needed.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

http://waterheatertimer.org/GE-timers-and-manuals.html#zilla
http://waterheatertimer.org/pdf/Zilla-digital-manual.pdf
1) There is no repair for defective timer.
According to manual, under Initial Timer Operation: yellow outlet is ON at 4:00 pm.
Make sure Mode button is not set to OFF.

2) Scheduling timer: Think about the zilla timer this way:
Day is 12 hours and night is 12 hours.
Your total schedule is only 9 hours, but it overlaps day and night.

If timer 'night' starts at 6pm and ends at 6am, then your programming overlaps day and night.
If timer 'night' starts at 12midnight and ends at 12noon, then your programming still overlaps day and night.

3) To solve zilla time problem, set current time differently.
4) Or buy GE or Utilitec 24-hour programmable power strip

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You are having problem programming zilla digital power strip timer.
http://waterheatertimer.org/GE-timers-and-manuals.html#zilla

Either timer is defective, or programming has conflicts that cause timer to ignore programming, or blue-yellow outlets are not understood, or combination of these problems.

Zilla yellow outlets are for daytime hours.
Blue outlets for nighttime.
The instruction manual does NOT specify what hours are for daytime. 6 am to 6 pm? Or 12 am to 12pm?
The zilla analog timer divides day and night at 12 and 12.

If digital timer is also 12 and 12, then you cannot set ON at 5:59am and OFF at 5:59pm without fudging the current time setting. For example offset current time by exactly 6 hours.

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Open following link for Zilla timers
http://waterheatertimer.org/GE-timers-and-manuals.html#zilla

Zilla timers are unique for home-type timers.
They are two-channel timers, which means that timer has 2 independent programs.
In the case of Zilla, 1 program controls yellow outlets for daytime hours (6am to 6pm). Once daytime hours are over, the yellow outlets are OFF.
The other program controls blue outlets for nighttime hours (6pm to 6am). Once nighttime hours are over, the blue outlets are OFF.

So if you have a light for example, and light is plugged into yellow outlet, then you can program light to turn on-off during the daytime hours only. You cannot also set a nighttime program for the same light unless you plug light into blue outlet.

Zilla timers are for aquariums, where day and night plays important role in life cycle and activity of different types of aquatic beings.

Add a comment and say exactly which Zilla timer you have, and say what specifically you have done so far, and where you are stuck, and what loads you want to control.

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#zilla

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1) View Zilla product and manuals at following link:
http://waterheatertimer.org/GE-timers-and-manuals.html#Zilla

2) Zilla is aquarium timer, and astronomic-type timer, and 2-channel timer, that breaks 24-hour day into strict night and day settings.

3) Manual says: both yellow and blue outlets cannot be on at the same time
Yellow outlets are daytime hours.
Blue outlets nighttime hours.
If you have analog timer, daytime hours show on dial with dark background.

4) You need to plug into both blue and yellow outlets to set times that run continuously from 5am to 11pm.

5) To solve problem might require different timer altogether.
Link posted above shows different Utilitec, Woods, Westek, and GE power strips models that might suit your exact purpose better.

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Yellow outlets are controlled for 12 hours (approx).
Your schedule is 8 hours.
To solve problem: The timer does not know what time it is until you set current time. So set current time so your 8 hour schedule falls within the 'daytime' hours.
http://waterheatertimer.org/GE-timers-and-manuals.html#zilla

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I would use two timers for this rather than the Zilla, but you could put the moon lights into the second timer set on for short periods before and after the white lights, then plug the white lights into the day outlets and set the timer to have them on for the five hours.

I have the same problem and can't get the lights to automatically turn off and on by the time cycle I set. I have to manually turn them on/off which is useless. Did you get an answer?