Maybe the sight of popcorn brings tears to your eyes from hunger? Or maybe orville redenbacker is trying to poison you?

I think this is the best ANSWER..
A minute is generally 60 seconds. Some minutes are 61 seconds owing to the introduction of leap seconds, but that is unimportant here.

Most microwave ovens have generally simple inputs, when you type 1-2-0, you fill it's digit buffer with 1-2-0, which is interpreted according to the format m:ss and not, as you think, sss.

The reason for this is that, generally, people have been found to put items on for periods of time which span several minutes and it is easier to simply input a number of minutes plus an amount of seconds than it is to do the arithmetic to work out how many seconds the desired amount converts to. If all cooking instructions quoted seconds, then microwaves would have an input panel which read in a number of seconds instead. But, the defacto method for measuring time is done using a hierarchy of units (which we call seconds, minutes, hours etc).

It's as simple as that.

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