The "Task duration" section - settings of task comletion time limit. There are three settings available:
unlimited - default setting, no time limit on tasks;
... days since assigning - is measured in the number of days to complete the task. The countdown of days for the user starts from the moment the task is assigned;
- calendar period - limitation of task completion by calendar dates and time of access to the task within one or more hours.
The access time limit works only for starting a task. For example, if the user managed to start the quiz within the specified time period, the expiration of the access time will not interrupt the quiz - the user will be able to finish the quiz and get a mark. But if the access period ends, the system will not allow the user to start the task - the task will be failed.
By default, the Do not block access after expiration date option is added to the job time limit settings. This feature allows assigned users to perform tasks after the deadline expires.