[tz] Correcting daylight-savings time for central Missouri prior to 1967
eggert at cs.ucla.edu
Fri Nov 23 20:45:53 UTC 2018
Jane Eisenstein wrote:
> I was born and raised in central Missouri and know most of Missouri did not observe daylight-savings time prior to 1967. Areas close to Kansas City or St. Louis did observe daylight-savings time prior to 1967. I’ve also attached supporting scans of Missouri daylight-savings time information from the 1991 revision of Time Changes in the U.S.A. by Doris Chase Doane.
Doane partitions Missouri into about two dozen regions with distinct time zone
histories. In contrast, Shanks lists 49 such regions in Missouri. Both
authors say Missouri agrees with America/Chicago after 1970 so we haven't needed
to create a new zone for any of these regions, under the guidelines Guy Harris
We've found Shanks to be unreliable, and if Doane (like Shanks) cites no sources
it's probably no better than Shanks, and most likely worse. If someone did the
legwork to come up with primary sources for Missouri (copies of old newspapers
and the like), we could put the resulting data into the 'backzone' file. It'd be
some work, though.
Shanks TG. The American Atlas. 5th ed. 1990. ACS.
More information about the tz