Cocoa::TTX

NSDate *now = [NSDate date];
NSCalendar *gregorian = [[NSCalendar alloc]
initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *nowComponents = [gregorian components:NSYearCalendarUnit fromDate:now];

NSDateComponents *xmasComponents = [[NSDateComponents alloc] init];
[xmasComponents setDay:25];
[xmasComponents setMonth:12];
[xmasComponents setYear:[nowComponents year]];
NSDate *xmas = [gregorian dateFromComponents:xmasComponents];

int ttx = (int) ([xmas timeIntervalSinceDate:now] / (24 * 60 * 60)) + 1;
NSLog(@"%d", ttx);

[xmasComponents release];
[gregorian release];