WANT TO RUN TIMER FOR MORETHEN 7 HOUR WHEN EX. INTERRUPT GENERATED

[pverm.19]

I am using stm8s003f3 controller for your project. I want to run timer 4 and timer 2 for 10 hours when a button is a press(external interrupt generated).

I tried but my timer 4 is not going for more than 15 min.

Can you please help me out