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10.4: Make 24-hour time work in iCal System 10.4
Tiger only hintSince upgrading to Tiger in May, I noticed that the time format in iCal was in the AM/PM format. Being in the emergency services field, and my wife being a nurse, we use the 24-hour format. The 24-hour format was checked in the Date & Time preferences, but there was nothing in the international prefs for this format.

I contacted AppleCare and we deleted files and folders, and restarted the system a few times, but nothing changed. Then someone from the UK stated that his system was displaying 24 hour time in the system and in iCal. So I checked to see if my PowerBook would do the same if I changed the setting to the UK ... and it fixed the problem.

So I copied the time format that is used in the UK settings short (13:00) or medium (13:00:00) time, and I pasted the UK format in my International setting, and that fixed the problem. The only minor annoyance is that now my international settings say Custom and not US.

So as far as I can tell, the US settings don't have a preset for the 24-hour format in the International prefs. Hope this helps someone from pulling out all their hair trying to fix this.
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10.4: Make 24-hour time work in iCal | 13 comments | Create New Account
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10.4: Make 24-hour time work in iCal
Authored by: pettri on Jun 29, '05 10:28:00AM

Any change from standard settings will result in the 'custom' setting.

Date or Time settings can be set to whatever you want in the 'International' preference pane. There are however a few 'gotcha's' in Tiger to be aware of.

In relation to the time formats, some apps seem to use the 'Short' format and some the 'Medium' format.

One big gotcha / bug I have found with tiger [including 10.4.1] is that you must set the various formats in Short, Medium, Long and Full formats in EXACTLY that order. Once you get the 'longest' format you wish to customise CLOSE the prefPane immediately to 'lock' in your settings.

I have found the even going back and 'looking' at a 'smaller' format can sometimes cause all your custom settings to 'get lost.'

Anyone else out there noticed this 'bug'.

---
Have a Great day!
pete.



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10.4: Make 24-hour time work in iCal
Authored by: afranz on Jun 29, '05 11:07:38AM

yes, I can confirm this, I changed the medium time format to show the date and time in the menu clock, but that resets the other settings. You need to modify ALL of them to make the change stick.
Achim



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10.4: Make 24-hour time work in iCal
Authored by: moritzh on Jun 29, '05 12:55:10PM

Yes, you are right. You need to modify all settings to make them stick. Not sure if you need to edit them in exactly that order, though.

The International Preferences in Tiger are a big pain in the a**, really. It's one of the most annoying things I have seen. Example: You cannot customize the way you want your numbers formatted independently from the other settings anymore. E.g. I like to see "one thousand two hundred thirty four and a half" to be displayed as 1'234.5. To get this, you must select a region which uses this number format, in my case Switzerland. But, by selecting Switzerland, the days of the week etc. are automatically displayed in German althought my language is set to English. Similarly, be selecting, say, United States as the region, you get the weekdays in English, but the number format doesn't match my preferences, and there is no way to change it.

It's so sad that they have some mighty functionality built in, but that a really, really crappy GUI breaks everything. I knwo, I could probably dig around in some plist files, but I think this shouldn't be and really wonder sometimes how much testing they do until they release such tools...

Already files a bug report about this with Apple.



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10.4: Make 24-hour time work in iCal
Authored by: jfa643 on Jun 29, '05 11:57:59AM

Why go to this trouble? Just open the International preferences panel, go to Times, Customize, and click on the leftmost number (hours). A small triangle lights up, and a pop-up list of various formats opens. Just select the one you like (1-24 or 01-24). Make sure to set the Date & Time preferences to 24-hour clock first.

Joe



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10.4: Make 24-hour time work in iCal
Authored by: rgray on Jun 29, '05 12:28:36PM

That works beauty! Thanks...



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10.4: Make 24-hour time work in iCal
Authored by: thellum on Jun 29, '05 03:58:00PM

Yep. This worked for me too. I use the Canadian layout and now have a 24hour clock. Woohoo!

---
The whatchamacallit has to be whatever
or else the whosits will go hey-hey.
~ Scott Adams



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10.4: Make 24-hour time work in iCal
Authored by: snaguru on Jun 29, '05 02:18:12PM

Hi,
After changing the time format in the International PrefPane, iCal still did not
change its time representation. My date/Time Pref Pane does have have 24-hour
clock set.
What else needs to be done?



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10.4: Make 24-hour time work in iCal
Authored by: Felix on Jun 29, '05 03:23:04PM

I did exactly what jfa643 wrote (and in the order he wrote) back when Tiger first came out and it works...including displaying iCal times in the 24-hour format. I do have the iCal advanced tab "Turn on time zone support" unchecked but I don't think that makes any difference.



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10.4: Make 24-hour time work in iCal
Authored by: ahamel on Jun 29, '05 05:07:08PM

Does anybody know how to customize number format in Tiger? I use canadian (or french) date and time format. But I need US number format (decimal separator being a "." and not a "," ) when I use Quicken 2005 for Portfolio.



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10.4: Make 24-hour time work in iCal
Authored by: username on Jun 29, '05 06:00:34PM

I have the same problem:
can anybody please say how to customise the number and
currency format in tiger? - quite an annoyance here in europe using tiger..
thanks.



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10.4: Make 24-hour time work in iCal
Authored by: macosxphile on Jun 30, '05 05:32:37AM
This is an incredibly annoying glitch that is causing a lot of problems for people, especially in Europe, but there is an easy fix for it. The short explanation is to delete the localization.prefPane from 10.4 or 10.4.1 and replace it with the 10.3.9 version, and you will once again have the ability to set the system-wide formatting for date, time, and currency. I originally posted this to the Apple Discussions boards, but a more detailed how-to can be found on my site, if needed.

I won't bother commenting on just how stupid a mistake this is, but it should have been plainly obvious to Apple that this function didn't work correctly. They appear to be going on the assumption that everyone will be happy with their default locale settings. As an American living overseas, I've adopted the dd/mm/yy date settings that the rest of the world uses, and have always preferred the 24-hour clock, so this was one of the first things that I noticed when I installed 10.4.

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10.4: Make 24-hour time work in iCal
Authored by: username on Jun 30, '05 02:26:01PM

this works! you made my day! finally, I can use my powerbook again..



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10.4: Make 24-hour time work in iCal
Authored by: BrentT on Jun 30, '05 12:37:01PM

I am not sure about how Quicken responds, but you can change the / to . in System Preferences>International>Format by just highlighting the / in the date pane and typing a "." This works for Finder date displays but I don't know if other apps will also use it.



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