The very simple reason why Maryland does not have its own exemption from Daylight Saving Time (DST) is because it follows the federal schedule like most U.S. states and has not passed legislation to opt out or stay on permanent standard time. The only U.S. state that historically and currently does not observe DST is Hawaii, along with most of Arizona (except the Navajo Nation).
Why Hawaii and Arizona Don’t Observe DST
Hawaii is close to the equator, where daylight hours don’t vary much throughout the year, so changing clocks is unnecessary.
Arizona has a desert climate where extending evening daylight during hot months would increase energy use for cooling, so it stays on standard time year-round.
Maryland and DST
Maryland observes DST following the Uniform Time Act and federal rules with no state exemption.
Although some states have introduced legislation for year-round DST or to stop observing DST, Maryland has not done so.
In summary, Maryland does not avoid DST simply because it follows federal law and has not enacted measures to opt out. The two clear examples of states that do not do DST are Hawaii and most of Arizona.
SOURCES
(https://economictimes.com/news/international/us/when-daylight-saving-time-2025-fall-back-date-end-states-observe-what-reason-us-states-territories-do-not-follow-how-to-prepare/articleshow/123099184.cms)(https://en.wikipedia.org/wiki/Daylight_saving_time_in_the_United_States)(https://www.timeanddate.com/time/change/usa)
(https://en.wikipedia.org/wiki/Daylight_saving_time_by_country)
(https://thehill.com/homenews/state-watch/5464355-daylight-saving-time-which-states-want-to-stop-changing-the-clocks/)
