Joe Sestak isn’t wasting any time against Pat Toomey.

The Democratic U.S. Senate nominee will begin campaigning at 5:45 a.m. Wednesday in Philadelphia, his campaign said in a press release issued at about 2 a.m.

“Democratic U.S. Senate candidate Congressman Joe Sestak will be at Market East Station at the corner of 11th and Market Streets from 5:45-6:40 am today,” spokesman Jonathon Dworkin said in the statement.

The first campaign stop of the general election battle against GOP U.S. Senate nominee Pat Toomey will come only hours after Sestak knocked off Arlen Specter, the longest-serving U.S. Senator in Pennsylvania history, in a race many observers had written off as a win for Specter just a month ago.

Sestak has developed a reputation for working long hours on the campaign trail, a fact he often brags about to reporters.