Sharp Atomic Weather Station Alarm Clock "set back 1 hour" Questions

...set.

https://www.acurite.com/media/manuals/01010W-instructions.pdf

BACK OF DISPLAY UNIT
1. A-B-C Switch
ID code that must match 5-in-1 sensor’s A-B-C switch to ensure units ...

set to Central time but shows 1 hour too off sh/be 10:00 am shows 9:00 am..help the day when you change the clocks back changed.......older clocks don't have the new time changed, so they still change