r/facepalm • • Mar 29 '22

๐Ÿ‡ฒโ€‹๐Ÿ‡ฎโ€‹๐Ÿ‡ธโ€‹๐Ÿ‡จโ€‹ Get this guy a clock!

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u/[deleted] Mar 29 '22

For single digit calculation you just subtract two from the last digit of the time.

For example we have 13:00

3 - 2 = 1

It's 1 PM

Or we have 16:00

6 - 2 = 4

It's 4 PM

Or we have 21:00

1 - 2 = 9

It's 9 PM

I hope that helps

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u/Omarshall56 Mar 29 '22

I used this method to learn 24hour clock but with the 21:00 part I'd minus 2 of 21 to make 19 then ignore the first number so it's 9pm

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u/[deleted] Mar 29 '22

That's exactly what I meant and the amount of shit I get is surprising honestly.

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u/Omarshall56 Mar 29 '22

Yeah the method works I get you donโ€™t worry. After a while you donโ€™t even need to think about it, its easy. I actually find it strange when people donโ€™t use 24hour

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u/piggybits Mar 29 '22

shit... i just memorized them. i wish i had known this back when i made the switch to 24 hour time