My assignments deadline was due to March 13, 00:00. I uploaded my assignment half a day earlier, but did not confirm it, because instructions said we do not have to (last uploaded version always gets saved). But, stupid me, I confirmed my assignment after the deadline, without uploading new version, and that overwritten my original submission time.
Now it looks like I was late with my assignment. By 15 minutes.
What to do in such situations? I was thinking of writing to a teaching asistent and explaining the situation.