How to compare two NSDate objects in objective C

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Here’s an example using the NSDate method, compare:

if([startDate compare: endDate] == NSOrderedDescending) // if start is later in time than end
{
    // do something
}

From the class reference:

If…

The receiver and anotherDate are exactly equal to each other,
NSOrderedSame.

The receiver is later in time than anotherDate, NSOrderedDescending.

The receiver is earlier in time than anotherDate, NSOrderedAscending.

You could also use the timeIntervalSinceDate: method if you wanted to compare two dates and find the seconds between them, for example.

EDIT:

if(([startDate1 compare:[self getDefaultDate]] == NSOrderedSame) || ([startDate1 compare: [self getDefaultDate]] != NSOrderedSame && (([m_selectedDate compare: m_currentDate1] == NSOrderedDescending) || [m_selectedDate compare: m_currentDate1] == NSOrderedSame) && cycleStopped))

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