Math Memes

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Time is math I think (slrpnk.net)

submitted 6 days ago by ByteOnBikes@slrpnk.net to c/mathmemes@lemmy.blahaj.zone

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[–] pruwybn@discuss.tchncs.de 10 points 6 days ago* (last edited 6 days ago) (2 children)

In the US the day starts at 12 AM; there is no zero.

[–] lnxtx@feddit.nl 14 points 6 days ago (4 children)

The most unlogical thing. If it starts at 12 AM, the next hour is 1 PM, right?
I prefer midnight and noon, or a 24h clock.

[–] Successful_Try543@feddit.org 7 points 6 days ago (1 children)

The most unlogical thing. If it starts at 12 AM, the next hour is 1 PM, right?

No, ante meridiem and post meridiem say whether it's before or after noon, thus, after 12:59 AM comes 1:00 AM.

https://en.m.wikipedia.org/wiki/12-hour_clock#Confusion_at_noon_and_midnight

[–] lnxtx@feddit.nl 6 points 5 days ago (1 children)

I mean when looking at numbers:
| . | . | . | . | . | . | |

| | 1100pm | 1159pm | 1200am | 1259am | 0100am | ... | | 1100am | 1159am | 1200pm | 1259pm | 0100pm | ... | | 2300~24h~ | 2359~24h~ | 0000~24h~ | 0059~24h~ | 0100~24h~ | ... | | 1100~24h~ | 1159~24h~ | 1200~24h~ | 1259~24h~ | 1300~24h~ | ... |

Too much confusion.

Even NIST (National Institute of Standards and Technology in the US) suggests:

To avoid ambiguity, specification of an event as occurring on a particular day at 11:59 p.m. or 12:01 a.m. is a good idea, especially legal documents such as contracts and insurance policies. Another option would be to use 24-hour clock, using the designation of 0000 to refer to midnight at the beginning of a given day (or date) and 2400 to designate the end of a given day (or date).

[–] Successful_Try543@feddit.org 6 points 5 days ago* (last edited 5 days ago) (1 children)

I didn't want to imply that the use of the 12 hour system should be prefered in any way. Just that the division into AM and PM follows some logic. Its just the numbering 12, 1, 2,... that's weird.

[–] lnxtx@feddit.nl 2 points 4 days ago

I like your reply. I think it's a source of all problems.

[–] neatchee@lemmy.world 6 points 6 days ago

"midnight" and "noon" for sure.

.... And now I'm thinking about all those super heros and villains named "midnight" and their logical counter-characters "noon"

[–] KillingTimeItself@lemmy.dbzer0.com 3 points 5 days ago

the 12 is a zero point, it's just listed as 12.

[–] macaw_dean_settle@lemmy.world 1 points 5 days ago

You don't know what a.m. and p.m. mean.

[–] joshchandra@midwest.social 2 points 4 days ago

Let me introduce you to something known as military time (which, yes, even exists in the US)...