On a partner-linked experience, you can set an exact start and end time for a booking instead of choosing one of the preset times configured on the experience. This is useful when a partner has arranged something that doesn't line up with your standard slots — a 9:15 departure rather than 9:00, or an earlier finish than usual.
Set a custom time
Create a new booking.
In the Itinerary builder, click the date on the experience to open Edit Dates.
Select the date, then find Time & duration below the calendar.
Click Custom. On experiences with preset times it sits after the time options; on experiences with a flexible start window it sits next to the start-time dropdown.
Choose a Start time and End time. Changing the start moves the end with it to keep the same length. You can set the end on its own, as long as it's after the start.
Click Done, then Select.
The option then shows the range you set — for example, 9:15 AM – 1:45 PM. To go back to a standard time, pick one of the preset options, which clears the custom time.
When Custom isn't available
Only on partner-linked experiences. Outfitter-run experiences set times through Per-unit details instead — see How to override the start time while creating a booking.
Only on partial-day experiences. Full-day trips don't have a time picker.
Only before the booking is confirmed. Once a booking is confirmed, the time options are greyed out and can't be changed. Set the time while the booking is still a draft.