@Chuck's answer is correct, and lead me to the following code. Thought I'd share:
NSDateComponents *comps = [[NSDateComponents alloc] init];
[comps setDay:10];
[comps setMonth:10];
[comps setYear:2010];
NSDate *date = [[NSCalendar currentCalendar] dateFromComponents:comps];
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…