I love^W**HATE** date programming on iOS.

currentlyOpen.m

- (BOOL)currentlyOpen {
	int weekday = [[[NSCalendar currentCalendar] components:NSWeekdayCalendarUnit fromDate:[NSDate date]] weekday];
	NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(weekdayFrom <= %d OR weekdayTo >= %d) AND ANY location.resourceUri like %@", weekday, weekday, self.resourceUri];
	Hours *hours = [Hours findFirstWithPredicate:predicate];
	int currentHour = [[[NSCalendar currentCalendar] components:(NSHourCalendarUnit | NSMinuteCalendarUnit) fromDate:[NSDate date]] hour];
	if ([hours.hourFrom intValue] <= currentHour && [hours.hourTo intValue] >= currentHour) {
		return YES;
	} else {
		return NO;
	}
}