In March, millions of Americans will turn their clocks forward, marking the start of daylight saving time in 2025. The controversial practice of "springing forward" and "falling back" has been observed in most states for decades.

While most states follow the biannual practice, Arizona — with the exception of the Navajo Nation — and Hawaii do not partake in daylight saving time. The U.S. territories of Puerto Rico, Guam, American Samoa, and the U.S. Virgin Islands also forgo the twice-yearly changing of the clocks.

Here's when daylight savings time starts and ends this year and what would happen around the country if it ends permanently in 2025.

We’re still in the dark, cold days of winter but take heart. Spring – and the time change – is just around the corner.

And before you know it, daylight saving time 2025 will be here. According to TimeAndDate.com, daylight saving time will start on Sunday, March 9, this year. Clocks will “spring forward,” as the saying goes,