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Setting XP to Use 24-Hour Clock

Published August 18, 2007 Technology , Windows 71 Comments

I did some hunting today to find out how to set up Windows XP to use the 24-hour clock instead of the (ugh) 12-hour clock. Here it is:

Go to Control Panel > Regional and Language Options, and click the Customize button next to the drop-down box. Go to the Time tab, and change the time format to H:mm:ss. The value you just replaced should have looked something like hh:mm:ss tt. The ‘tt’ represents AM or PM, and obviously we won’t need that anymore. Click OK, and OK again, and look at the clock in your taskbar. Hooray!

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71 Responses to “Setting XP to Use 24-Hour Clock”

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  2. 3 marto January 14, 2008 at 10:23 am

    big thax man,i was searchin this for hours

    Reply
  3. 4 DB February 8, 2008 at 6:47 am

    thanks much, I too was looking for this!

    Reply
  5. 6 Minde August 24, 2008 at 5:11 am

    Thnx man, was googling this up

    Reply
  7. 8 Elton September 4, 2008 at 12:26 am

    Nice one. Just re-installed XP and AM was bugging me.

    Reply
  8. 9 Matt September 20, 2008 at 7:09 am

    Thanks I was wondering how to do this.

    Reply
  9. 10 Anne October 9, 2008 at 7:11 pm

    Wonderful. Thank you!
    Now, can you let us know how to add the date to the task bar as well? :-)

    Reply
  11. 12 mp October 26, 2008 at 12:28 pm

    Thanks,friend…Me and a friend of mine were trying for ours to fix it……..

    Reply
  12. 13 Bud Durant October 30, 2008 at 6:08 pm

    Many thanks, I have been pulling out my few remaining hairs trying to figure how to select 12/24 hour format.

    Reply
  13. 14 PAUL November 22, 2008 at 7:12 pm

    THANKS !!!!!!!!!!!!!!!

    Reply
  14. 15 vaun December 30, 2008 at 2:37 am

    coooooollllll thanx..dudde

    Reply
  15. 16 Ed January 4, 2009 at 12:03 pm

    Very nice – i was looking for this…..

    Thanks,

    Reply
  16. 17 John January 18, 2009 at 12:32 pm

    Thanks, wanted to get rid of the 24 hour time… quite annoying to look at.

    Reply
  17. 18 Joe January 26, 2009 at 7:42 am

    Thank you very much, I had no idea where they hid this setting!

    Reply
  18. 19 Buck-A-Roo January 27, 2009 at 12:14 pm

    thank you very much

    Reply
  19. 20 Bo January 30, 2009 at 10:03 pm

    was lookin’ for this for ages. Thank you

    Reply
  20. 21 Glen McNiel February 2, 2009 at 9:48 am

    Thanks dude. Cut down my digging through the control panel.

    Cheers!

    -ZenGlen
    http://twitter.com/zenglen

    Reply
  21. 22 Dorian C March 5, 2009 at 7:12 pm

    Thank you so much for this enlightening post. Made my day a little easier for not having to go and change it the way I remember (restarting computer and hitting f10 to open the boot menu thing and changing it there).

    Reply
  22. 23 Peeved April 9, 2009 at 12:33 pm

    Thanks heaps! Why this is not adjusdable via the “control panel – date and time” is beyond me???? Idiot programers I suppose…..

    Reply
  23. 24 GoFigure June 13, 2009 at 10:25 am

    You are better than Obama and greater than Einstein!

    Reply
  24. 25 Opi July 3, 2009 at 11:59 am

    Thanks a lot!!

    Reply
  25. 27 Larry October 1, 2009 at 7:18 pm

    Thanks for the info! Now I can tell what time my email actually came in during the day!

    Reply
  26. 28 damn skippy October 15, 2009 at 6:48 pm

    Thanks, you da man!

    Reply
  27. 29 Muzic247 November 7, 2009 at 5:08 pm

    Thanks! That’ll work for and ol’ Army guy….

    Reply
  28. 30 jpump November 13, 2009 at 1:11 pm

    thanks, needed to see GMT time

    Reply
  29. 31 Martin November 24, 2009 at 3:50 pm

    Thank you I can see if it AM or PM again

    Reply
  30. 32 nemesis December 9, 2009 at 8:46 pm

    THANK YOU VERY MUCH!!!!!

    Reply
  31. 33 JKeegan December 17, 2009 at 3:33 pm

    Thanks. I knew what panel I needed but somehow could not locate the customize button until I was told specifically it was there.

    Reply
  32. 34 lastminutedealer December 24, 2009 at 7:37 am

    Bravo:

    The exact dialogue box for making the change to 24-hour format (French Railroad Time) is located at:

    http://www.lastminutedeals.com/24_hour_clock

    Reply
  33. 35 ethemea February 18, 2010 at 7:29 pm

    epic awesome i wanted to do that for so long and i didn’t know how thanks man

    Reply
  34. 36 james March 11, 2010 at 6:29 am

    perfect – i have my taskbar mounted on the left and now the time isn’t squashed.

    cheers!

    Reply
  35. 37 Tony March 16, 2010 at 3:41 am

    I took the AM off the end which was bugging me lol..it was past the screen and i could only see the A of AM..so i disabled the AM option , now the numbers are where they should be…but now??? if PM comes around will it display the PM..then it will have that past the screen look where u only see part of the time..how would i fix that so the time will be visible with AM and PM disabled..ty all in advance

    Reply
  36. 38 syl1101 March 16, 2010 at 6:57 am

    ThankYa fella!

    Reply
  37. 39 John March 17, 2010 at 5:56 am

    Thanks alot!

    Reply
  38. 40 dufus March 17, 2010 at 12:41 pm

    I too was reinstalling XP (for speed-up purposes) and couldn’t remember how I had done it before. Awesome to have military time back.

    Reply
  39. 41 dufus March 17, 2010 at 12:42 pm

    A quick second point… how ironic that your comment timestamps are in civvy format? ha ha

    Reply
  40. 42 pakubhai April 13, 2010 at 3:05 am

    Thank you very much …now I dont have count the time when I see the time

    Reply
  41. 43 Kyle April 24, 2010 at 10:06 pm

    Thanks for the information! 24-Hours just make so much more sense to me then the 12-hour type.

    Reply
  42. 44 Simon Ndunda June 2, 2010 at 6:34 am

    Big Thanks, I really needed to change mine and now its done.

    Reply
  43. 45 colin August 20, 2010 at 2:33 am

    Thank you,
    I’ve been fed up with the 12 h clock, thank you again for the tip, finally i have the 24hrs day….
    wow!!!!

    Reply
  45. 47 loraine October 9, 2010 at 5:59 am

    thank you very much! This is very useful tip, finally I get rid of the AMs and PMs…

    Reply
  46. 48 tehol October 14, 2010 at 11:08 am

    awesomesauce. pre-adjusting for the future,

    weeeeeeeh

    weeeeeeeeeeeh
    weeeeeeeeeeeeeeeeeEEEEEEEEEEEEEEEEEEEEh

    Reply
  47. 49 HelloKitty November 2, 2010 at 1:40 am

    Very very helpful thanks. It was the best link I found 4 this, very clear. :)

    Reply
  48. 50 Bob Nelson November 9, 2010 at 2:39 am

    Thanks for the tip.

    It is a lot better than garbaging up my computer with another app. and is useful for Amateur Radio, where schedules are given in 24 hour time.

    Reply
  49. 51 nanri November 10, 2010 at 10:05 am

    thank you. simple and helpful.

    Reply
  50. 52 muchina December 26, 2010 at 11:00 am

    thanx alot. why on earth would they hide this o[ption so far. it should be right there when you right click the clock for options.

    Reply
  51. 53 Maxx January 9, 2011 at 1:17 pm

    Hi, THX for your input on the net.
    I was looking around in so many places.

    THX a lot

    Reply
  52. 54 Shawn March 28, 2011 at 10:25 am

    BIG thumbs up. This was bothering me for a LONG time

    Reply
  53. 55 John April 5, 2011 at 4:26 am

    Thank you very much!!!!!!!!!!

    Reply
  54. 56 Cristian April 29, 2011 at 12:13 pm

    Verry usefull – straight to the point.
    keep ot going on … and on …

    Reply
  55. 57 DJ May 22, 2011 at 1:01 pm

    You are the best ever man, searched on my comp for hrs trying to figure this out.

    Reply
  56. 58 Venkat June 8, 2011 at 12:09 am

    Great Work Pal…. I was creating new USER ACCOUNT for this simple prob
    Great work

    Reply
  57. 59 None June 22, 2011 at 5:35 pm

    Couldn’t figure this out forever.. Karma point for you.. Thx

    Reply
  58. 60 tcwjr2006 October 9, 2011 at 12:33 pm

    Thanks. Been looking for this for awhile.

    Reply
  59. 61 nomad October 19, 2011 at 7:04 am

    Thanks sooo much! Clear and unambiguous – perfect instructions …

    Reply
  60. 62 Anri November 23, 2011 at 5:33 am

    thank you very very much… this helped me a lot.

    Reply
  62. 64 John in KS January 17, 2012 at 1:38 pm

    Thank you! I had forgotten how to do that, it’s been too long.

    Reply
  63. 65 daskhatri January 18, 2012 at 11:09 pm

    very helpful.. saved lot of time, efforts..THank u so much man.

    Reply
  64. 66 BILL March 27, 2012 at 4:18 pm

    it worked great.i had tried to do it before but it did not work..

    THANK YOU VERY MUCH
    BILL

    Reply
  65. 67 Anna April 15, 2012 at 5:34 pm

    Thank youuuuuuuuuuuuu!!!!

    Reply
  66. 68 darryl April 22, 2012 at 2:59 pm

    thank youuuuuuuuuuuuu.
    it was really starting to bug me.

    Reply

  1. 1 Windows XP clock - EliteKingdoms Trackback on July 17, 2010 at 3:22 am
  2. 2 Computer date and time question - Bananas.org Trackback on November 11, 2010 at 11:28 am

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