[Boost-users] timezone database discrepancy

Subject: [Boost-users] timezone database discrepancy
From: archie14 (admin_at_[hidden])
Date: 2010-10-05 13:42:56

I am calculating start/end time of the daylight savings time using tz_database 
and  default timezone database file "date_time_zonespec.csv" that comes with 
boost 1_44. I found discrepancy between results of the calculation 
for "America/Chicago" region and published data. 

for years 2010-2007 the results match. 
However, for the 2006 calendar year, published results from several sources 
are:
Start: April 2 End: October 29 
and calculated results are:
Start: March 12 End November 5

I will appreciate any advise/comments on how to deal with this issue.