Mark your calendars. More daylight is coming Sunday, March 9.

Technically, it is not more daylight coming but rather the amount of daylight people can enjoy as clocks are moved forward one hour to allow people to enjoy the daylight later in the evening.

Currently, clocks across the nation are operating on standard time, when clocks are reverted back to the official time during the fall for the winter months. When clocks are moved forward in the spring each year, they go into Daylight Saving Time, allowing the extra hour of sun during the summer months.

According to sources, the dates on which to change clocks has moved for political and social reasons. The Uniform Time Act of 1966 formalized the United States’ period of daylight saving time observation as lasting six months (it was previously decided locally).

In 1986, the period was extended to seven months. In 2005, it was extended again to eight months, motivated by lobbyists from the candy industry seeking to increase profits by including Halloween within the Daylight Saving Time period.

So, when clocks are moved forward on March 9 by one hour, they will not move back an hour to standard time until Sunday, November 2.

Although several states have passed legislation to have Daylight Saving Time permanent, because it is a federal act means that it would take Congress and the President’s signature to adopt the changes to make it official. So far, any efforts to change the Act have failed and the two clock changes each year continue.