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 Post subject: TIME TRAVEL?!
PostPosted: Sun Jan 11, 2015 5:41 pm 
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I saw this in Cinolt's profile.
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An what is 12.30 am at all?

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 Post subject: Re: TIME TRAVEL?!
PostPosted: Sun Jan 11, 2015 6:07 pm 
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Someone buy this kid a clock.

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 Post subject: Re: TIME TRAVEL?!
PostPosted: Sun Jan 11, 2015 8:59 pm 
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Hi,

Roman wrote:
I saw this in Cinolt's profile.
Image

An what is 12.30 am at all?


A quick explanation for people who are unfamiliar with the 12 hour clock (e.g. and only use the far more sensible 24-hour clock, that's standard in some countries). For the 12-hour clock, time goes like this:
    12 am to 1 am
    1 am to 11 am
    12 pm to 1 pm
    1 pm to 11 pm

The roll-over from 11 o'clock to 12 o'clock is not sane; and it's possibly best to think of 12 o'clock as "zero o'clock" instead. For example, "12:30 am to 3:26 am" is like "0:30 am to 3:25 am".


Cheers,

Brendan

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 Post subject: Re: TIME TRAVEL?!
PostPosted: Sun Jan 11, 2015 10:22 pm 
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Location: Melbourne, Australia
Brendan wrote:
The roll-over from 11 o'clock to 12 o'clock is not sane; and it's possibly best to think of 12 o'clock as "zero o'clock" instead. For example, "12:30 am to 3:26 am" is like "0:30 am to 3:25 am".
Actually it would make more sense to have zero o'clock at noon and to reverse times in the morning. The m in am and pm stands for noon so noon is the zero time. It should flow like this

Coming up to noon
.
00:02 am
00:01 am
00:00 (am or pm - doesn't matter)
00:01 pm
00:02 pm
.
.
.
coming up to midnight
.
11:58 pm
11:59 pm
12:00 ( am or pm - doesn't matter)
11:59 am
11:58 am
.
.

The normal 8 hour work day thus begins at 3am and finish at 5pm.

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 Post subject: Re: TIME TRAVEL?!
PostPosted: Sun Jan 11, 2015 10:30 pm 
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Brendan wrote:
Hi,

Roman wrote:
I saw this in Cinolt's profile.
Image

An what is 12.30 am at all?


A quick explanation for people who are unfamiliar with the 12 hour clock (e.g. and only use the far more sensible 24-hour clock, that's standard in some countries). For the 12-hour clock, time goes like this:
    12 am to 1 am
    1 am to 11 am
    12 pm to 1 pm
    1 pm to 11 pm

The roll-over from 11 o'clock to 12 o'clock is not sane; and it's possibly best to think of 12 o'clock as "zero o'clock" instead. For example, "12:30 am to 3:26 am" is like "0:30 am to 3:25 am".


Cheers,

Brendan


Thank you for your response!

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- Alan Kay


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 Post subject: Re: TIME TRAVEL?!
PostPosted: Mon Jan 12, 2015 12:45 am 
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There is no zero on an analog clock, just as zero is not part of common human vocabulary. They traditionally put a twelve there. Even in speech it goes from half past twelve to a quarter to one.

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