The time zone was amended in Venezuela when the clocks were turned back by 30 minutes on December 9, 2007.
Venezuela plans to adjust its time zone from four hours behind UTC, to 4:30 hours behind UTC, by adjusting their clocks backwards 30 minutes. The clocks will be turned back at 3:00 AM on December 9, 2007.
Why the time zone is changed
Venezuela's current time zone is UTC-4 hours, a standard time zone which is centered through the 60° West Meridian. However almost all of Venezuela is west of 60° West, and also east of the next standard time zone Meridian at 75° (UTC-5 hours), so none of these standard time zones fit exactly with Venezuela which is in the middle between two time zone Meridians.
Therefore a time zone between the standard time zones of 4 and 5 hours behind UTC was chosen. It is 4 hours and 30 minutes behind UTC, and centered around meridian 67°30' West. The capital, Caracas is at at 66°58' West, which is close to 67°30' West.
As a consequence, in the new local time, the sunrise will be 30 minutes earlier (more light in the morning), and sunsets 30 minutes earlier (darker evenings).
Venezuela also observed the UTC-4:30 time zone between 1912 and 1964. As 1965 started, the clocks were moved forward 30 minutes into the current time zone of UTC-4 hours.
Venezuela has never observed daylight saving time, like many other countries near equator.
Half-hour time zones
Half-hour time zones have 30 minutes offset from the standard time zones. The standard time zones have an integral number of hours difference to UTC (or GMT).
A number of countries and states/territories use half-hour time zones already, some of them are:
When will the clocks change
The final date was:
- 9 December 2007
- 1 January 2008 - This was the first date announced in August 2007.
- 17 September 2008
- 24 September 2008
- 23 September 2008
- 7 October 2008
- 14 October 2008
Gaceta Oficial Número #38.819 contains the final announcement.