Sri Lanka GMT offset adjustment

Jesper Norgaard Welen jnorgard at
Fri Apr 14 07:02:55 UTC 2006

I have found a website that claims a different time for the GMT offset
change for Sri Lanka than we have in the present 2006c. The page
claims the following:

13 April 2006 - 07:38 
Change in Sri Lanka Standard Time 

Ministers have approved a Cabinet Memorandum submitted by Disaster
Management and Human Rights Minister Mahinda Samarasinghe to revert the
clock by 30 minutes from April 14 midnight.

With the implementation of this decision, the Sri Lanka Standard Time (SLST)
reverts back to the zone GMT +5 1/2 hours, which was used prior to May 24,
1996 for over 50 years.

It is necessary to put the clock back by half an hour at 0030 hrs on April
15. This means 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30
minutes) at present, become 2400 hours of April 14, 2006 (midnight of April
14, 2006). 
=== end of article ===

This is different than the tz database which will have the change at
midnight of the of April, thus putting time back to 23:30 the
of April.

Steffen Thorsen on however has
it from of April at 0:30 returning to of April 0:00, e.g.
almost 48 hours before will have it. Perhaps Steffen could
enlighten us on his source (usually local web users)?

Although the article from is not official, it is the first
one I have seen that gives explicit instructions about what time to adjust
the clocks. So who are we to believe?


Jesper Nørgaard Welen
Email: jnorgard at	
Project Leader (Líder de Proyecto) Software
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