Tododisca US — which focuses on “disability, dependency, senior living, health, economics and well-being news” and is “composed of a group of people with varying abilities” — recently published a report on all the states that will not change their clocks at the start and end of Daylight Savings Time, meaning they will keep the same time year-round.

These states are Arizona — with the exception of the Navajo Nation — and Hawaii. Puerto Rico, Guam, American Samoa, and the U.S. Virgin Islands — all of which are U.S. territories — also do not participate in this practice.

As for why a region would forgo changing its clocks twice a year, USA Today explains that for Arizona and Hawaii specifically, their proximity to the equator — and, by default, the amount of sunshine they get compared to other areas — is more than enough to make Daylight Saving Time a permanent fixture year-round.

A 2022 PennLive report on a motion to do the same in Pennsylvania notes that several officials said banning clock changing would be beneficial to public health: The American Medical Association argues that a year-round standard time best aligns with people’s natural circadian, biological sleep clocks, and other concerns.

Furthermore, the same PennLive report stated that phasing out the practice could potentially reduce energy consumption. It is also simply, in the words of Florida Senator Rick Scott, “outdated and unnecessary.”

However, Pennsylvania’s clocks will still be turned back one hour when Daylight Savings Time ends in November 2024.