Daylight Savings Time for 2015 begins this Sunday, March 8th at 2 am local time. Remember to spring your clocks forward one hour. Here are 7 helpful things to know about Daylight Savings Time.

1. Why: The main purpose of Daylight Saving Time (called “Summer Time” in many places in the world) is to make better use of daylight. We change our clocks during the summer months to move an hour of daylight from the morning to the evening.
2. You’ll lose an hour: That hour between 2 a.m. and 3 a.m. vanishes. On Sunday morning, it will feel like everything is starting an hour earlier. If you work, attend a religious service, or have other plans, make sure you adjust your clocks.
3. Mornings are darker: On Sunday morning, sunrise will be an hour later. It will be darker during your early-morning commute.
4. Evenings are brighter: Since mornings are darker, that means evenings will be brighter because now the sun sets an hour later.
5. All of the U.S. makes the change with a few exceptions: Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, and most of Arizona (the Navajo Indian Reservation does make the change) all do not make the shift to Daylight Saving Time.
6. Many clocks automatically adjust: Any clock attached to the internet or a wireless network like your cell phones, laptops, and tablets will automatically adjust. Double check just to be sure. For other clocks such as plugin-in alarms, wall clocks, or car clocks, you’ll need to adjust them.
7. Double check the time: One easy way to double check the current time is to Google “What time is it” and the search result will return the current time. You can also visit Time.gov for the official time.