When you create a new lesson page, you can choose to add time estimates for each page to set expectations for learners.
The Time Estimate option will appear beneath the page title, on the page header. Hover your mouse over the time estimate section to edit.
You can select between "Min, Hour, or Day" and "Read, Watch, Listen, or Work" for the type of content.
Note that if you are duplicating your lesson page, the previous page’s time estimate will duplicate over. You can always go back into “Edit Mode” to adjust the time estimate: