As I read it they'd done seven barge movements between midnight...

As I read it they'd done seven barge movements between midnight and 16:30 today. And they usually get a few done from late afternoon to midnight. Four of the barge movements up to and including the 16:30 Start Time were out to Sea.

I've been counting all 'Barge Carrier' movements with a Start Time on a date. So I count both to Sea and back movements. Barges frequently go out (full) on one day and back (empty) the next, hence the odd numbers in the count I've been giving for individual days. And then, to calculate tonnages barged, I divide by two to get the average loaded barges sent out.

I usually wait until the next day so all the count is 'COMP' or completed Status.

Just to be clear how I am counting from the QShips info.