Question

I want to setup local notification for a specific EST time, and user should get the notification irrespective of user’s default timezone. lets say, if I want the local notification to arrive at 12:00 noon EST, then some one in pacific timezone should also get the notification when it is 12:00 noon est which is 09:00 PST

here is what I have tried to do, but I only get notifications when I set my default timezone to EST

UILocalNotification *localNotif = [[UILocalNotification alloc] init];

localNotif.repeatInterval = kCFCalendarUnitDay;
NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar];
NSDate *today = [NSDate date];

NSDateComponents *dateComponents = [calendar components:( NSYearCalendarUnit |       NSMonthCalendarUnit |  NSDayCalendarUnit )
                                               fromDate:today];    
NSDateComponents *dateComps = [[NSDateComponents alloc] init];

[dateComps setDay:dateComponents.day];
[dateComps setMonth:dateComponents.month];
[dateComps setYear:dateComponents.year];

[dateComps setHour:12];
[dateComps setMinute:00];
[dateComps setSecond:00];

NSDate  *fireDate = [calendar dateFromComponents:dateComps];
localNotif.fireDate = fireDate;
localNotif.timeZone = [NSTimeZone timeZoneWithName:@"US/Eastern"];
localNotif.alertBody = @"Daily Notification";
localNotif.alertAction = NSLocalizedString(@"View", nil);
localNotif.soundName = UILocalNotificationDefaultSoundName;

NSDictionary *infoDict = [NSDictionary dictionaryWithObject:@"Daily Notification" forKey:@"acme"];
localNotif.userInfo = infoDict;

[[UIApplication sharedApplication] scheduleLocalNotification:localNotif];
[localNotif release];

can someone tell me where am I going wrong.

Answer 1

I have found out the issue here.. Time zone should be set for the date and not for the notification, so I would have to add this line of code:

[dateComps setTimeZone:[NSTimeZone timeZoneWithName:@"US/Eastern"]];

and should comment the code line:

localNotif.timeZone = [NSTimeZone timeZoneWithName:@"US/Eastern"];