The latest version of C-Max implements the new North American daylight savings time changeover dates as of 2007 (2nd Sunday of March and 1st Sunday of November).

You can download the latest version here:

Install the latest version over your existing one (your C-Max programs and other files will not be lost) and then start the new C-Max utility. Go into "Comms" --> "Attach to Controller" and you should get a popup window telling you that a newer version version of the executive exists and offering you to upgrade it. Click on "OK" and the new executive will be installed.

Important: Reloading the executive will wipe out any currently running C-Max program! You will thus need to reload your program after the executive update.