How to make a timer mechanism for my aquarium light?

Hello, I am going on vacation and I want to make some sort of mechanism that will keep my aquarium light turning on in the morning and off at night. I have looked at some light timers, but I read that one of them was such bad quality that it set on fire from electricity. Since I am going for some time, I would... show more Hello, I am going on vacation and I want to make some sort of mechanism that will keep my aquarium light turning on in the morning and off at night. I have looked at some light timers, but I read that one of them was such bad quality that it set on fire from electricity. Since I am going for some time, I would rather not have one of these timers. Does anyone have any ideas on how to make this invention? Thanks.
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