In my country, 30-40 years back, people who needed a watch were those ones who travel regularly. And travel was mostly using public transport, trains and planes. Most or all of it operated using a 24h time. That button was very useful. Compare that to the mute/silence/DND physical button in iPhones today.

Also people who worked in confined spaces who wouldn’t know if it was day or night outside after a days job. My father who worked in an oil rig in Abu Dhabi used one. He gifted me one.

This was 1998.

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tass 4 hours ago | parent | next [-]

Yes but why not just always use 24h time (or 12h if that’s what you like).

It’s a little strange that a dedicated button would be needed to switch between them, especially when the math to convert between them is so simple.

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bestouff 3 hours ago | parent | prev | next [-]

OK, but who would use 12h time ? I never understood, this seems so backwards.

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themadturk an hour ago | parent | next [-]

How about someone who was raised on 12h time and has used it for 70 years? Sure, the math to convert is pretty easy, but why?

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bestouff 9 minutes ago | parent [-]

Ok right. I didn't know people were used to that.

	▲	yepyeppers a minute ago \| parent [-]
		You didn’t know about 300 million Americans?

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bigfatkitten an hour ago | parent | prev | next [-]

Americans. The U.S. has a lot of people who are unaccustomed to 24 hour time.

	▲	bestouff 8 minutes ago \| parent [-]
		I knew for the imperial units but not this. This country ... let's say it always amaze me.

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cmoski an hour ago | parent | prev [-]

People who can't reliably subtract 12 from numbers. They're out there.

	▲	Retr0id an hour ago \| parent [-]
		It's me! (But I solve it by using 24h for everything)

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CorrectHorseBat 4 hours ago | parent | prev [-]

How about just leaving it on 24h time all the time?