The file... ftp://elsie.nci.nih.gov/pub/tzdata2010a.tar.gz ...is now available; this reflects only the changes to Dhaka circulated recently on the time zone mailing list. I'm still trying to determine just what northern-Mexico areas are to observe US DST starging in 2010, and there's at least Mauritius work to do; expect tzdata2010b.tar.gz in a week or two. --ado