NSDateComponents issue - incorrect day

Question

I have a NSDateComponents problem. I have two NSDates that I am trying to compare by checking if their year, month and day match. This I am doing by converting the NSDate va

Answer 1

NSDate has an isEqualToDate: function. so what you are trying to do can be done by:

[datea isEqualToDate:dateb];

there is also a Compare: function available, that returns the ordering of the dates.

edit: I'm now aware this doesn't answer your question about why the days return different values when they are set the same. Sorry! this still may help make your code a bit cleaner.

Answer 2

I think the issue is the following: Your dates are set in GMT time zone (+0000) If you are in the US, for example at GTM-6, then by the -currentCalendar the first date will be 6pm on Aug 3rd while second date will be 8:49am on Aug 4th.

You should force your calendar to have the UTC (GMT) timezone, or put the dates in your time zone, depending what is correct for your application.

Answer 3

It looks like you have a time zone issue. Though your dates are set at time zone +0000, your [NSCalendar calendar] call likely returns you a calendar for your local time zone. Given the adjustment to local time, the orderDate is likely in the next day. Manually set your calendars to time zone +0000.