YES requires a law mandating permanent daylight saving time nationwide to be signed or enacted over a veto by December 31, 2026; a state opt-in measure or permanent standard time would not qualify. The House passed H.R. 139, but the bill remains stalled in the Senate, where Majority Leader Thune has said there is no clear path or consensus, and the Senate's announced November 9 return schedule lists other business rather than a daylight-saving-time vote. A short lame-duck window and presidential support leave a narrow possibility of action, but the remaining procedural and political hurdles make enactment by the deadline highly unlikely. No relevant external sentiment market for this precise legislative outcome was returned, so the estimate rests on the legislative status and limited remaining calendar.
Thune said October 5 that there was no clear path forward, and opposition extends beyond Sen. Tom Cotton to other Republicans citing safety concerns.
On Oct. 3, Trump urged Arkansans to contact Sen. Tom Cotton, accusing him of blocking the Sunshine Protection Act. Cotton publicly reiterated his opposition, citing dark winter mornings for children. The episode brought no reported committee or floor action; the Senate’s announced return is Nov. 9.
The Senate’s Oct. 1 notice and Sept. 30 schedule list pro forma sessions through Nov. 5, then a Nov. 9 return focused first on other legislation, with no scheduled H.R. 139 or S. 29 action.
Recent coverage says the bill has not advanced beyond Senate referral, no vote was scheduled as of Sept. 21, and an upcoming state-work period leaves limited time before the Nov. 1 clock change.
The Senate resumed regular business on September 14, but no Sunshine Protection Act vote was scheduled as of September 17. The chamber is scheduled to leave again October 5 and return after the November 1 clock change, compressing the remaining legislative window.
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