Hours in NSDate every time in 24-hour style?

Question

I have this date formatter:

 NSDateFormatter *timeFormatter = [[NSDateFormatter alloc] init];
 [timeFormatter setDateFormat:@\"HH:mm\"];

If I u

Answer 1

If you want to force it to 12-hour or 24-hour mode, regardless of the user's 24/12 hour mode setting, you should set the locale of the date formatter to en_US_POSIX (for 12-hour), or, say, en_GB for the 24-hour mode.

That is,

NSLocale* formatterLocale = [[[NSLocale alloc] initWithLocaleIdentifier:@"en_GB"] autorelease];
[timeFormatter setLocale:formatterLocale];

Some more on that here:

http://developer.apple.com/iphone/library/qa/qa2010/qa1480.html