The phrase "submission date" refers to the specific day on which something is required to be turned in or completed.
Sentences with «submission date»
I couldn't finalize any topic on brand management and submission date for assignment was just a week away. (instantassignmenthelp.com)
That assumes a 30 day turnaround after submission as well as 30 days cushion on submission date. (nintendonuggets.com)
Most of the time of your academic session gets in producing long assignment along with the fear of definite submission date. (studentsassignmenthelp.com)