"Larry M. Smith" <SgtChains@FahQ2.com> writes:
It should be assumed that Wisconsin followed the America/Chicago rules before 1957, when the 175.095 statute was passed into law.
My guess is that they differed quite a bit from Chicago way back when. I can do some research into that if necessary, but first:
Operationally this statute is currently enforced at the 1 A.M. time of change. Because the local "bar time" in the state corresponds to 2 A.M., a number of citations are issued for the "sale of class 'B' alcohol after prohibited hours" within the deviated hour of this change every year (0100-to-0200 America/Chicago, 0200-0300 America/Wisconsin).
If I understand you correctly, people in Wisconsin actually keep their clocks according to the federal rules, but once a year the police hand out tickets as if the clocks switched at 01:00 rather than at 02:00. If that's the case, then there isn't a need for a change to the tz database proper, as our usual practice is to record the time that people actually use. But thanks for the legal citation and remarks: I'll add a comment.