The very simple reason why Texas doesn’t do daylight saving time permanently yet (along with Hawaii, the other state that does not change clocks) is mainly due to federal law and energy conservation concerns. Currently, U.S. federal guidelines only allow states to opt out of daylight saving time by observing standard time year-round. Texas, like Hawaii and most of Arizona, has considered not changing clocks, but federal approval is required to adopt daylight saving time permanently.
Hawaii and Arizona do not observe daylight saving time chiefly because of their geographic and climatic conditions. In Arizona, the intent is to conserve energy in the hot summer months; extended evening daylight would cause increased air conditioning use, raising power consumption. Hawaii’s tropical location results in very little variation in day length year-round, making daylight saving time unnecessary.
Texas has passed legislation to move toward permanent daylight saving time, but this is pending congressional approval and broader regional coordination. Until federal law changes, Texas like most states will continue the twice-yearly clock changes, while Hawaii and most of Arizona remain on year-round standard time.
Texas cannot permanently adopt daylight saving time without federal approval.
Hawaii and most of Arizona stay on standard time year-round due to unique energy and daylight considerations.
The federal government governs daylight saving time changes, limiting state options.
Texas’s move to permanent daylight saving time awaits congressional authorization.
SOURCES
[1](https://thehill.com/homenews/state-watch/5526971-these-states-approved-permanent-daylight-saving-time-why-their-clocks-still-change-in-november/)
[2](https://www.timeanddate.com/time/change/usa)
[3](https://indicators.report/daylight-saving-time-2025/)
[4](https://en.wikipedia.org/wiki/Daylight_saving_time_in_the_United_States)
[5](https://www.srijanprivateiti.in/daylight-saving-time-2025/)
