Definitions and general provisions; Daylight Saving Time; contiguous states; effective date.

HB 3137 would keep Oklahoma on Central Standard Time year-round (without seasonal clock changes) unless two neighboring states (Arkansas, Kansas, Missouri, or Texas) also adopt permanent daylight saving time. The bill amends state law to require Oklahoma to switch to permanent daylight saving time only if two of those contiguous states do the same, ensuring regional coordination for commerce and convenience. It also includes a provision that if federal law changes to allow year-round daylight saving time, Oklahoma would adopt it. The bill takes effect November 1, 2026.