Simple rotation

I need object to rotate 30 degrees than 60 than 90 and loop from start.
How do i do this with timeline?

assuming you want world X rotation,

Woah. This is something! Thank you very much.

np; note that if you want to loop to the beginning after N iterations, you need to use Branch OUT, add delay, and wire into setting current step to 1 again node (right after play rate)
you could achieve the same result using one timeline with custom curve, but that would not give you freedom to choose number of rotations, degrees, delays, etc