While looking at the following website: http://www.timeanddate.com/time/aboutdst.html I came across this nugget:
Is DST always one hour ahead of normal time?
Today it is almost always one hour ahead, but throughout history there have been several variants on this, such as half adjustment (30 minutes) or double adjustment (two hours), and adjustments of 20 and 40 minutes have also been used. A two-hour adjustment was used in several countries during the 1940s and elsewhere at times. A half adjustment was sometimes used in New Zealand in the first half of the 20th century. Sometimes DST is used for a longer period than just the summer, as it was in the United States during World War II. From February 3, 1942 to September 30, 1945 most of the United States had DST all year; it was called “War Time.”
Anyone recollect that? What did they use in theater? When forward deployed now, we use local time for most day to day "when is chow" sort of things, but operationally we use Zulu or Greenwich Mean Time.