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Yeah, but because if analog clocks here in Austria we have no problem to convert back and forth. Are there no analog clocks in Norway?
by panzi 3y ago
Yeah, but because if analog clocks here in Austria we have no problem to convert back and forth. Are there no analog clocks in Norway?
- mtlmtlmtlmtl 3y agoThere are, but we just skip the AM/PM part most of time, because it's obvious from context which one you mean. And if it's not you'll just say "... in the morning/afternoon/evening"
- tomrod 3y agoAM: morning, PM: afternoon/evening
- tgaj 3y agoYeah, but this is the problem - why noon is "afternoon"?
- xen0 3y ago"12:00:00 + ε" is after noon, but your clock will not show a difference.
- tomrod 3y agoClopen intervals in order to have a well-specified time system. [0] [12:00 PM, 12:00 AM) for after the noon instant [1] [12:00 AM, 12:00 PM) for before the noon instant 24-hour time is superior to the mod-12 time system in almost every way but mechanical clock faces and soldier shifts under early systems that used sun dials. However, the equivalent question can be asked by a day is a clopen interval of [00:00 current day, 00:00 next day)
- eesmith 3y agoIn 24-hour time, those are 12-24 and 0-12, respectively. https://en.wikipedia.org/wiki/ISO_8601 https://en.wikipedia.org/wiki/ISO_8601 A place open 24 hours/day is open in the period 0-24.
- tomrod 3y agoI don't follow your point. Are you correcting my point on clopen intervals and mod bases?
- eesmith 3y agoI think clopen is too complicated in that it expresses ranges that are not practically useful, like (10,11], and it complicates expressing something like "Open 0-24", where your notation appears to require a date. I think you get the essential utility you want in a 24 hour clock by simply letting 24 (or "24:00:00" when fully written out) be a way to represent the end of the day. It's also already in use, with examples at https://ioi2023.hu/faq/ https://ioi2023.hu/faq/ , http://www.garageferrarimilazzo.com/en/ http://www.garageferrarimilazzo.com/en/ , and https://jozsefvaros.hu/english/news-in-the-district/2022/12/public-toilets-in-jozsefvaros/ https://jozsefvaros.hu/english/news-in-the-district/2022/12/... .
- yjftsjthsd-h 3y agoNoon isn't really before or after noon, but we want to lump it together with one of them, so we picked the one that made 12:00 and 12:01 go together. (Edit: or for that matter, 12:00:00 and 12:00:01, down to arbitrary closeness, as sibling comment points out)
- carlosjobim 3y agoPeople in 24h cultures always use 12 analog hours in normal situations, but the 24h system is needed for situations where it is easy to make a mistake. When is dinner? - It's at seven. When does the flight depart? - At 19:00
- yakubin 3y ago> People in 24h cultures always use 12 analog hours in normal situations No, we don't. The only person I know who by default uses 12h is my grandmother. Everybody else always uses 24h.
- crazygringo 3y agoDo you mind me asking where you are? All my experience has also been using 12h time in casual situations in 24h countries. I'm curious of a country that doesn't, and whether that's true of the whole region.
- yakubin 3y agoPoland. It seems to be more of a generational thing than regional. People over the age of 70 seem to use 12h. Younger ones use 24h.
- hydrok9 3y agoIreland, New Zealand and Finland used 24 casually when I was there
- TRiG_Ireland 3y agoIreland uses 24h clock in writing (including casual writing, text messages, etc.), and it wouldn't be at all unusual for personal digital clocks to be set to 24h clock, but I'd be surprised to hear it in speech.
- carlosjobim 3y agoI've never heard anybody from a 24h country use 24h unless it's regarding situations where there cannot be any ambiguity. You either live in an exceptional place, or interact with exceptional people. World you really say "At fifteen o'clock" instead of "At three o'clock" or "Three in the afternoon"?
- tgaj 3y agoBut it's still not helpful with AM/PM. If I see 12 and it's dark outside then I know it's midnight, otherwise it's noon, and that's what I will say to someone who will ask "what time is it?". I still don't know if it's PM or AM.
- panzi 3y agoAh right, for that particular time its difficult. Yeah, I have to google that.