erica/NSDate-Extensions — Issue #8: Don't do it like that!
Author: grosch
Created: 2011-10-21 05:48:53+00:00
State: open

It's really bad to add/subtract dates like you are you you don't account for any of the issues around dates. You should be using the calendrical operations instead of just adding 86400 seconds per day. Watch the WWDC video on this and he clearly explains why what you're doing is unsafe.