This special election is held in accordance with Article V of the Constitution and with the Consolidated Electoral System Reform Act. The regular election begins at 0:00 EDT, Friday, August 22, and ends at 0:00 EDT, Monday, August 25.
Note that voting begins at midnight (0:00 at the Atlas time shown at the top of your browser page) and ends in exactly 72 hours.
Is 0:00 EDT not midnight?
It is midnight, but the default atlas clock shows that it's 11:31. People in the Eastern time zone can start voting at one.