Update: time just flipped to Pacific (LA) while hitting submit on the last reply.
I'll also note I'm running the TimeData node server. From it's logs, the time/date information on polisy is correct, including DST status and my manually-input lat/long:
2021-11-07 16:35:13,534 Controller polyinterface INFO polyinterface:reportDriver: Updating Driver timedata - GV1: 35, uom: 0
2021-11-07 16:35:13,537 Controller polyinterface INFO polyinterface:reportDriver: Updating Driver timedata - GV9: 447395, uom: 0
2021-11-07 16:35:13,539 Controller polyinterface DEBUG timedata:season: dd: 7 md: 1107
2021-11-07 16:35:13,540 Controller polyinterface DEBUG timedata:getNodeUpdates: UTC offset: -5.0
2021-11-07 16:35:13,543 Controller polyinterface DEBUG timedata:getNodeUpdates: Old epoch days: 18938.89945601852
2021-11-07 16:35:13,544 Controller polyinterface DEBUG timedata:getNodeUpdates: Stripped date string is 2021-11-7 16:35, weekday 6, days since epoch: 18938.89945601852, hours this year: 7456
2021-11-07 16:35:13,544 Controller polyinterface DEBUG timedata:getNodeUpdates: Day of week 6, Week number 46, Day of Year 311
2021-11-07 16:35:13,545 Controller polyinterface DEBUG timedata:getNodeUpdates: Minutes in year to now 447395, hemisphere north, season 2, leap year 0, isDST 0