NASHVILLE, Tenn. (WTVF) — A bill that would observe daylight saving time year-round in Tennessee is headed to Governor Bill Lee for approval.

The bill is heading to the governor’s desk for signature after the Senate passed the legislation on Tuesday.

However, the law can't go into effect unless it's signed off by the federal government.

According to the bill, the law would take effect on the first Sunday of November after the United States Congress amends or repeals 15 U.S.C. § 260a (15 U.S. Code Section 260a) – a federal law that requires states to observe standard time.

In other words, states can exempt themselves from observing daylight saving time but not standard time.

Hawaii is the only state that doesn’t observe DST at all. Additionally, most of Arizona doesn’t move its clocks forward every year – with the exception being the Navajo Nation.