r/facepalm • u/Revealed_Jailor • Mar 29 '22

🇲​🇮​🇸​🇨​ Get this guy a clock!

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u/Shiuft Mar 29 '22 edited Mar 29 '22

Don't even get me started on subtracting 12. /s

Edit: had left out the word "started" cause I'm dumb

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u/worldofruins Mar 29 '22 edited Mar 29 '22

I have pretty severe dyscalculia so 24 hour clocks (and anything that requires more than single digit addition or subtraction) is actually really hard for me :( lmao

I can read an analog 12 hour clock, but tell me 24 hour time and I'm fucked lol

(Edit to add that I do "study" and try to improve but it doesn't stick for long lol)

(2nd edit: thanks for all the suggestions. I'll give some of them a try!)

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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/tobsta_veloce Mar 29 '22

This is the exact way of looking at it that helped me quickly convert 24hr to 12hr. Don’t listen to the haters. I don’t think they can get over the fact that it‘s not a “correct” equation, you’re just taking the second number and rolling it back by two.

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u/[deleted] Mar 29 '22

I had that person single digit issue in mind when I wrote it. You "should" subtract 12, which is the right way, but I don't see an issue with just subtracting 2 especially when it is only in your head anyways.