What is the “Available from” and “Due date” options in the Assignment module?
These are the dates you determine you want your student to be able upload their document to you. They are considered “open and close access dates” for your assignment.
The Available From setting prevents students from submitting their assignment before the date provided. This option allows an instructor to set a day, month, year and [military] time from which students can begin to submit their assignments. Please note that this setting does not hide the activity from the students. Instead, the student will see the activity, be able to view the instructions and use any materials you have included in the description, but the student will not be able to submit or complete the assignment until the Available from date. By default, the Available from date is enabled (ticked) and is set at the enable checkbox is not marked.
Due date - The Due Date setting prevents students from submitting their assignment after the shown date. This option allows an instructor to set a day, month, year and [military] time before which students must submit their assignment. By default the Available from date is enabled (ticked) and is set at 7 days ahead of the day and time you selected Add Assignment. To disable this feature simply ensure the enable checkbox is not marked.