Where Can I Set Salesforce Task Reminders in Lightning Experience

 Task reminders are supported in Lightning Experience in these places:  

• When users create a task from the Task tab, provided that a Salesforce admin has added the Reminder Set and Due Date fields to the task page layout.
• When users edit an existing task, provided that an admin has added the Reminder Set and Due Date fields to the task page layout.
• When users create a task via the New Task quick action, provided that an admin has added the Reminder Set and Due Date fields to the New Task Global Action. The Log A Call quick action doesn’t support reminders.