How to compare time

Question

How to compare time in Objective C?

if (nowTime > 9:00 PM) && (nowTime < 7:00 AM) 
{
  doSomething;
}

Answer 1

NSDate *now = [NSDate date];
if (([now compare:earlierDateVariable] == NSOrderedDescending) && ([now compare:laterDateVariable] == NSOrderedAscending ))
{
    // Do something here...
}

To set earlierDate and laterDate, straight from Apple's documentation available here

NSDateComponents *comps = [[NSDateComponents alloc] init];
[comps setDay:22];
[comps setMonth:03];
[comps setYear:2011];
[comps setHour:21];
[comps setMinute:00];
NSCalendar *gregorian = [[NSCalendar alloc]
    initWithCalendarIdentifier:NSGregorianCalendar];
NSDate *earlierDateVariable = [gregorian dateFromComponents:comps];
[comps release];
[gregorian release];

And the same goes for later date...