Convert NSDate from NSCalendarDate

calendarDate2date.m

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{

    @autoreleasepool {
        NSCalendarDate *cDate = [NSCalendarDate date];
        NSLog(@"calendar date = %@",cDate);
        NSDate *aDate = [NSDate date];
        NSLog(@"calendar date = %@",aDate);
        cDate = [NSCalendarDate dateWithTimeInterval:0 sinceDate:aDate];
        NSLog(@"calendar date = %@",cDate);
    }
    return 0;
}