Actual widget output
Class, event or session page

Show how long an event lasts from start and end times saved in ACF.

Each example below is the actual published output of the ACF event duration widget reading sample site data: Time Picker fields saved on the demo page itself (an evening class from 6:30 pm to 8:00 pm).

Sample site data. Default settings: 1 hour 30 minutes, marked up as an ISO 8601 duration.