May 19, 2011
1:23 a.m.
I have found another source indicating that Vietnam was on UTC+8h in early April 1969, and not on UTC+7h as current tzdata claims. The source is a personal war memoir, http://www.military.com/Content/MoreContent?file=fowler01 The author writes in the second paragraph (refering to his trip to Vietnam around April 10, 1969): ----- quote There is a 14 hour time difference between South Vietnam and Central Standard Time here in the United States. ----- end quote Again, this is consistent with Vietnam being on 8h east at that time. Central Standard Time is 6h west, making the difference 14 hours.