Friday, May 3, 2013

NSTimeZone isDaylightSavingTime example ios


Returns a Boolean value that indicates whether the receiver is currently using daylight saving time.
- (BOOL)isDaylightSavingTime
Return Value
YES if the receiver is currently using daylight savings time, otherwise NO.
This method invokes isDaylightSavingTimeForDate: with the current date as the argument.
Example of [NSTimeZone isDaylightSavingTime]
NSTimeZone *easternTimeZone = [NSTimeZone timeZoneWithName:@"US/Eastern"];
if ([easternTimeZone isDaylightSavingTime]) {
    NSLog(@"East coast is NOT on DT");
} else {
    NSLog(@"East coast is on DT");      
Example of [NSTimeZone isDaylightSavingTime]
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"M/d h:mm a"];
if([[NSTimeZone systemTimeZone] isDaylightSavingTime]) {

[NSTimeZone resetSystemTimeZone];
[dateFormatter setTimeZone:[NSTimeZone systemTimeZone]];