How can I determine if iPhone is set for 12 hour or 24 hour time display?

Question

I thought I saw something answering this on SO recently but now I can\'t find it. Here is the code I am using now to determine if settings are for 24 hour time display. It

Answer 1

I've just asked a similar question on here and I've managed to figure out a decent way of determining this with a little function I've added to a category of NSLocale. It appears to be pretty accurate and haven't found any problems with it while testing with several regions.

@implementation NSLocale (Misc)
- (BOOL)timeIs24HourFormat {
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setLocale:self];
    [formatter setDateStyle:NSDateFormatterNoStyle];
    [formatter setTimeStyle:NSDateFormatterShortStyle];
    NSString *dateString = [formatter stringFromDate:[NSDate date]];
    NSRange amRange = [dateString rangeOfString:[formatter AMSymbol]];
    NSRange pmRange = [dateString rangeOfString:[formatter PMSymbol]];
    BOOL is24Hour = (amRange.location == NSNotFound && pmRange.location == NSNotFound);
    [formatter release];
    return is24Hour;
}
@end

Hope this helps!