This table describes the changes to Date and Time Programming Guide for Cocoa.
| Date | Notes |
|---|---|
| 2009-07-21 | Added links to Cocoa Core Competencies. |
| 2008-07-03 | Moved information about NSCalendarDate to an appendix, rewrote articles to replace references to NSCalendarDate, and expanded content. |
Added a section about how to get date components using NSCalendar and NSDateComponents and a section about how to convert from one calendar to another. | |
Removed information about converting a date to a string. See NSDateFormatter Class Reference for that information. | |
| 2007-09-04 | Enhanced discussion of calendrical calculations using NSDateComponents. |
| 2007-03-06 | Added note regarding Julian and Gregorian calendars. |
| 2006-05-23 | Corrected typographical errors. Added a note about the use of width specifiers for calendar date format strings. |
| 2006-02-07 | Updated to include NSCalendar and NSDateFormatter changes introduced in Mac OS X v10.4. |
| 2005-08-11 | Changed title from "Dates and Times." Corrected minor typographic error. |
| 2002-11-12 | Revision history was added to existing document. It will be used to record changes to the content of the document. |
Last updated: 2009-07-21
