NSLocale+jr_displaysAMPM

NSLocale+jr_displaysAMPM.h

#import <Foundation/Foundation.h>

@interface NSLocale (jr_displaysAMPM)

+ (BOOL)jr_currentLocaleDisplaysAMPM;
- (BOOL)jr_displaysAMPM;

@end

NSLocale+jr_displaysAMPM.m

#import "NSLocale+jr_displaysAMPM.h"

@implementation NSLocale (jr_displaysAMPM)

+ (BOOL)jr_currentLocaleDisplaysAMPM {
    return [[NSLocale currentLocale] jr_displaysAMPM];
}

- (BOOL)jr_displaysAMPM {
    // Thanks to Dave DeLong @davedelong and Emanuele ∞ Vulcano @millenomi.
    // ref: https://twitter.com/rentzsch/status/226820028522184704
    NSString *hourFormat = [NSDateFormatter dateFormatFromTemplate:@"j" options:0 locale:self];
    return [hourFormat rangeOfString:@"a"].location != NSNotFound;
}

@end