Convertng from 24 hours to 12 hour clock quickly.

Browsing through neowin I found a thread with poll asking whether one likes 12 hour system OR 24 hour system,and if so is that because it due to difficulty to convert it etc..Reading through the post I got a good is an easy way to convert between 24 to 12 hours quickly.Here is how:

Take the 24 hour time…. take 2 off it. Simple

13 — 3 – 2 = 1pm
14 — 4 – 2 = 2pm
15 — 5 – 2 = 3pm
16 — 6 – 2 = 4pm
17 — 7 – 2 = 5pm
18 — 8 – 2 = 6pm
19 — 9 – 2 = 7pm
20 — 10-2 = 8pm
21 — 11-2 = 9pm
22 — 12-2 = 10pm
23 — 13-2 = 11pm
00 — If ya can’t work that one out, don’t bother with 24hrs :-p

Take the ones place and subtract 2 from it. You have 12 hour clock time. Easy

45 thoughts on “Convertng from 24 hours to 12 hour clock quickly.

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  2. So by “subtract 10, then 2”, what you really mean is “subtract 12”?

    Are we really that bad at math that we can’t subtract 12? C’mon people.

  3. Oh. My. God. This is ridiculous. Or maybe it’s just me that has been able to convert between 12h and 24h since I was four…

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  6. 12:20pm (as in just after noon) would be 1220hours. If you meant it was 20 minutes after midnight, then it would be 0024hours.

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  8. 1.This is really here just to be useful who have never converted the time before; If all you’re saying is “OMG how can u b so stupid 2 not b able to convert the time” thats really not why this is here.
    2. @spud really, does not using AM and PM make you a “gay twat”?

  9. well, after 12 noon, just keep counting regular, like,,, 12, 13, 14, 15. 16 is 4pm. Of course it helps if ya were in the Military too.

  10. I have no idea qhat this is 4 😐 ilove soccer yeerh. buut..What time is the match on fridaaaaay ;]


  11. I’m dyslexic and only understand 12hr clock because I am born with a learning difficulty does that make me stupid. Look at the lot of ye saying “comon you must me stupid if you can’t tell 24hr”. How dare you insult people in that manner. I can’t understand 24hr so tables like this benefit me when I need to figure something out for example if I book flights or train tickets the departure time is 24hr. Dyslexia is not stupid people it’s a serious learning problem. Grow up and stop thinking just because you know it all others don’t need help. Have some respect FFS….

    • you are so right my husband is dyslexia and has struggled hard all his life with this .You find there are lots of ignorant people in the world and lets hope everything goes perfect for them in their perfect world .Thank you for bringing awareness to this .

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