Vietnam timezone history corrections
alois at astro.ch
Thu May 19 08:51:19 UTC 2011
It seems necessary to split North Vietnam and South Vietnam into two
zones for timezone history between 1967 and 1975/1976
I have found corroboration that North Vietnam went from UTC+8 to UTC+7
on August 8, 1967, while South Vietnam stayed on UTC+8 'until after the
end of the Vietnam war'. Saigon fell end of April 1975.
There is another reference, discussing the difference between North and
South Vietnam timezone in 1968,
on page 29.
The timezone difference led to a different date for the Tet festival in
that year, creating confusion about the starting data for the Vietcong's
More information about the tz