objective c - How do I get the current hour using Cocoa?

Question

How do I get the current hour in Cocoa using Objective-C?

Answer 1

To start off, you should read Dates and Times Programming Topics for Cocoa. That will give you a good understanding of using the various date/time/calendar objects that are provided in Cocoa for high-level conversions of dates.

This code snip, however, will answer your specific problem:

- (NSInteger)currentHour
{
    // In practice, these calls can be combined
    NSDate *now = [NSDate date];
    NSCalendar *calendar = [NSCalendar currentCalendar];
    NSDateComponents *components = [calendar components:NSHourCalendarUnit fromDate:now];

    return [components hour];
}