Alien Eyes

.on Politics, Softwares, Books, Technology and Science

Convertng from 24 hours to 12 hour clock quickly.

with 36 comments

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 tip..it 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

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Written by knight17

July 29, 2006 at 9:46 PM

36 Responses

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  1. Hehe I knew this trick from my math teacher long ago :D

    Qwerty Maniac

    July 31, 2006 at 4:33 AM

  2. Quickly convert from the 24 hour clock

    Blog Alien Eyes features an obvious (but handy) tip for quickly converting the time on a 24 hour clock. Subtract 10 then 2 to get the 12 hour clock time: 13 — 3 – 2 = 1pm 14 –…

    Lifehacker

    August 2, 2006 at 9:00 PM

  3. 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.

    Bill

    August 2, 2006 at 9:28 PM

  4. Bill, I was about to say the same… Just substract 12!

    Mika

    August 2, 2006 at 10:30 PM

  5. lol, i was about to say essentially, it’s just substract 12…

    whoelsebutdalieu

    August 2, 2006 at 11:35 PM

  6. i linux firefox browers free download plz send e-mail address

    sreekanth

    August 3, 2006 at 3:58 AM

  7. Are people really that stupid that they need a table to convert from 24 hour to 12 hour time?

    colm

    August 3, 2006 at 7:41 AM

    • I think your father is Newton and and grand father was Albert Edition………….

      dev

      July 30, 2011 at 7:28 PM

  8. 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…

    Mikael

    August 3, 2006 at 7:11 PM

  9. [...] Jei kam įdomu galite pasisakityti  ir išmokti ;) [...]

  10. Hi alien, what’s your age?

    Srinivasa ramanujam

    August 7, 2006 at 5:57 AM

  11. I am 16, why do you want to know that?

    alieneyes

    October 12, 2006 at 8:23 PM

  12. Regali natale aziendali.

    Regali natale aziendali.

    Regali natale aziendali.

    December 8, 2006 at 9:49 AM

  13. only gay twats dont use am and pm

    spud

    January 13, 2007 at 7:42 PM

  14. i cant be leave ur fighting over clock times u losers the lot of u

    nerd_killer

    February 7, 2007 at 4:40 PM

  15. what is 12:20 pm in 24 hour clock please

    Adel

    March 28, 2007 at 7:15 PM

  16. 00:20

    matt

    April 12, 2007 at 3:00 AM

  17. 12:20pm (as in just after noon) would be 1220hours. If you meant it was 20 minutes after midnight, then it would be 0024hours.

    accebynnel

    May 2, 2007 at 4:04 AM

  18. Communications
    In a rapidly moving news environment, FDF operates a 24/7 press office and provides communications support to members FDF is the voice of the UK food and drink manufacturing industry. We work hard to promote the interests of the UK’s most important manufacturing sector.

    speplaybefs

    July 20, 2007 at 7:44 AM

  19. Hola faretaste
    mekodinosad

    AnferTuto

    July 28, 2007 at 5:35 PM

  20. the incorrect time of 00:20 that matt gave for 20 mins past noon is acutally the time for 20 minutes past midnight.

    Brs

    January 28, 2008 at 4:58 PM

  21. you are all ridiculasly sad people get a life why have a convo about times oh my god i serioiusly cant believe it

    b23

    January 9, 2009 at 2:28 AM

  22. good trick

    zoheb

    January 21, 2009 at 5:01 PM

  23. 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”?

    anonymous

    January 25, 2009 at 10:49 PM

  24. 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.

    Mike

    March 5, 2009 at 8:17 AM

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

    LOLZ IM NOT DUMM OKAAYS:|

    Bekii

    June 10, 2010 at 5:19 PM

  26. yaaaaa people :p people are soooooooooooooo crazzy

    melanie

    June 2, 2011 at 1:17 PM

  27. Waooooo !!! gr88888

    Mehboob Ali

    June 21, 2011 at 5:35 PM

  28. asgasgasgasgas

    sainasfas

    July 4, 2011 at 7:01 AM

  29. Well not have all of us have been born bright .not like u silly bolloxs have fun eating shit !

    Caire

    August 19, 2011 at 3:56 AM

  30. i didn’t know that…. :O ;)

    Sachel

    March 14, 2012 at 4:55 AM

  31. Wow! thx … Always wanted a quicky way … while buying movie tickets … that was easy! Thanks you!

    jazzonlin3

    April 1, 2012 at 2:58 PM

  32. alsome

    wilson5

    September 21, 2013 at 11:57 AM

  33. Iam ready to work

    erica tates

    February 26, 2014 at 1:03 PM


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