How can I set only time in NSDate variable?

Question

I have NSDate variable and would like to change only time (date shouldn\'t be changed). Is it possible ?

Eg: user pick date interval in DatePicker date (If it\'s start d

Answer 1

You'll want to use NSDateComponents.

NSDate *oldDate = datePicker.date; // Or however you get it.
unsigned unitFlags = NSCalendarUnitYear | NSCalendarUnitMonth |  NSCalendarUnitDay;
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *comps = [calendar components:unitFlags fromDate:oldDate];
comps.hour   = 23;
comps.minute = 59;
comps.second = 59;
NSDate *newDate = [calendar dateFromComponents:comps];