Venezuela 2007 Daylight Saving changes: The government of Venezuela has announced a change in the observance of daylight saving time in the country stating that the time change will take place on Sunday, September 23, 2007 at 11:31:00 PM local time. Officially on Monday, September 24, 2007 at 12:01:00 AM clocks should be turned backward 0:30 hours to Sunday, September 23, 2007 at 11:31:00 PM local standard time instead. Due to the timing of the change Microsoft did not have ample notice to update the Exchange Calendar Update Configuration Tool to cater to the Venezuela daylight saving change. Future versions of the Exchange Calendar Update Configuration Tool and other tools will include the Venezuela daylight saving change where possible.
There was some news this morning that this change may be delayed for 2 or 3 weeks - i haven't gotten good confirmation of that. All the news that i have seen is in Spanish and my Spanish is pretty poor :-)