If you want to be reminded of an upcoming task then this feature is for you.
30 minutes before the task due time you will receive an email reminding you about the upcoming task. For example, if you have scheduled a task at 5.00 PM and have enabled task reminders, then
you will receive the reminder at 4:30 PM.
By default, the reminder is sent 30 minutes before the task's due time. You can change this value by going to Settings -> Manage tasks -> Configurations -> Task reminders .
If a task has only a date and no time then a task reminder will not be sent for that task. In order for a task reminder to be sent the task must have a due time.