Help... Clock on Aqua knight v2 light frozen

[Levinson]

I've recently got a secondhand Aqua knight v2 light delivered to me and I just set it up now, sunrise, sunset, dimming, channels etc.
It was all good until I found out that the time on the digital clock on the unit is not changing! I tried unplugging, restarting but it was the same. After about 10~15 min, the clock had gone up 1 min but there was no further change after another 15 min or so.
Of all things that could fail, I have never expected a mere simple clock to fail. Everything else seems to work fine.
I did find a youtube video of someone with the same problem (video link below). The person had his/her light sent back and replaced but I don't think that'd be an option for me. The seller assured me that everything was in good working order and I definitely will be in touch with the seller but realistically speaking, I'd have a slim chance getting it refunded or get anything out of the seller should he/she decide to ignore the issue. I've also written to the manufacturer of the light, hoping to hear from them.

Does anybody know if there's anything I could do to fix the issue? Any input will be much appreciated. Cheers.

 

[Levinson]

The solutions I can think of are:
1. Use regular power plug timer and give up on the gradual sunset, sunrise feature.

2. Hook up an aquarium led controller (DC connection), something like: https://a.aliexpress.com/_mrfhGn7
It works on 12~24v led so I think it should work but I'm not 100% sure. Will it?

 

[Levinson]

The seller claims the light doesn't have a timer feature. Oh god. What have I gotten myself into. I should have just bought it new.
I have convinced him that the ter feature is there but there will be no refund. What a pain.

 

[PizzaIan339]

I am having the same problem hope someone can help.