event display

By default, the Scheduler aligns event boxes with the grid cells. The exact start and end are displayed using the duration bar at the top of the event.

You can turn it off using "useEventBoxes" property:
https://doc.daypilot.org/scheduler/exact-event-duration/

config = {
  useEventBoxes: "Never",
  // ...
}

With this setting, the events will not be aligned with the grid and the position will be calculated directly from start and end date/time values.