There is no command to worship on a specific day of the week. Scripture tells us that some gathered daily and some gathered on Sunday.
Acts 2:46 - And they, continuing daily with one accord in the temple, and breaking bread from house to house, did eat their meat with gladness and singleness of heart
Acts 20:7 - And upon the first day of the week, when the disciples came together to break bread, Paul preached unto them, ready to depart on the morrow; and continued his speech until midnight.
Even if there was, working shouldn’t be an issue.
Hebrews 4:10 - For he that is entered into his rest, he also hath ceased from his own works, as God did from his.