Hi Diana
But in the admin we have an option that said "<span style="background-color: #f1f1f1; color: #444444; font-family: -apple-system, system-ui, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif; font-size: 12px;">The course duration will be calculated from the time the user clicks on start course button."</span>
See picture
https://www.dropbox.com/s/5ek6gkyhd9i3req/Captura%20de%20pantalla%202018-05-29%20a%20la%28s%29%207.21.28%20a.%20m..png?dl=0