How do I make a Timer countdown?

Hello, I want to make timer go from 2min to 0, then from 1min to 0 and loop that. So 2 to 0, then 1 to 0, then 2, then 1 and so on. I am new to UE so if you can give me some more detailed info. I only managed to make timer go from 2min to 0. Thanks

You can use Timers:

And also FlipFlop node to swap between 2 and 1 sec timer

Alternatively if you want more control, you can count up time by adding up Delta Time on tick, or count down by subtracting Delta Time to specific starting number