For such a short amount of time, you could count the seconds - or note how far the turntable rotates in that time. Even with a digital dial, I doubt I would take the time to input 12 seconds - I'd just whack the +30 second start and stare at it for 12 seconds.

While I know this is a bit crass to say, there was a time where people just knew how long things took, via internal clocks.

It's a skill like any other, which of course has vanished, much like reading maps and math in head.

And 33 seconds is boiling molten lava.

I love how microwaves work, there’s a real art to it. 25 seconds , everything is cold but 40 seconds is boiling.

25x2 seconds , with a very short break in between the two, is not equal to 50 seconds.

Making these numbers “up” but anyone who has used a microwave with skill and attention will understand me.

Also, free tips: 1- put a moist paper towel over pizza and bread to keep it from hardening like a rock later on. 2 - microwave stale bread for a second life.