Va. Code § 1-253
The United States Eastern Standard Time shall be in effect in all parts of the Commonwealth except during the period when the United States Eastern Daylight Time shall be in effect as provided by federal law. This section shall not be construed to be in contravention of federal law, or duly authorized orders of the United States Secretary of Transportation with respect to the time zones of the United States and the application of standard time to interstate commerce and other matters within such zones.
In all laws, statutes, orders, decrees, rules and regulations relating to the time of performance of any act by any officer or agency of the Commonwealth, or any political subdivision thereof, or relating to the time in which any rights shall accrue or determine, or within which any act shall or shall not be performed by any person subject to the jurisdiction of the Commonwealth, and in all public schools, institutions of the Commonwealth or its political subdivisions, and contracts or choses in action made or to be performed in the Commonwealth, it shall be understood and intended that the time applicable thereto or referred to or implied therein shall be the United States Eastern Standard Time, or the United States Eastern Daylight Time, when and during such is in effect.
Va. Code § 1-253