Springtime has arrived in most American States, and clocks will be going forward one hour at 2 a.m local time, on Sunday.
People are advised to make the change before going to bed on Saturday night to avoid any late appointments on Sunday.
Not all American states will make the change. Hawaii, Arizona, Puerto Rico, the Virgin Islands, American Samoa, Guam and the Northern Marianas will remain on standard time.
When making the switch, emergency officials advise that people check the batteries in their smoke and carbon monoxide detectors.
Health experts have also issued warnings about Daylight Saving Time. While the extra hours of daylight give many an energetic boost, others suffer from sleep deprivation and anxiety, according to the Chicago Tribune.
The jet-lag feeling will pass in time, Helena Scotland, a clinical assistant professor of medicine at the University of Michigan, told the New York Times. But there are more issues in terms of safety.
She explained that when people forget to change their clocks, they are in danger of being late and end up rushing frantically, which gives them a rough start to the week.
Some studies have shown that daylight savings even increases the risk of car accidents, because people are not as alert as they would be if they had an extra hour of sleep. The change can even increase the risk of getting a heart attack, according to The Tribune.
Health experts advise people to prepare, especially if they have an appointment they next day. They advise people to go to sleep earlier than usual and change their clocks the night before.