The 372 is the bus service which runs between Dumfries and Dalbeattie on the A710 coast road. You may have to change buses at Sandyhills.
Due to covid-19 the timetable has been frequently changing but it looks as if services are about back to pre-Covid.
Follow the link below for the latest official timetables on the Dumfries & Galloway website. . Scroll down for the 372 service. Note that this is the most reliable source of timetables. The timetables on the bus stops may also not have been updated.