is designed to display continuous
interval of time. When the DayStartTime and DayEndTime properties are set they are applied on the whole VisibleDays range, not on each day (DayStartTime is applied to first day and DayEndTime is applied to the last day from the range).
However we have that logged in our Feedback portal as a Feature Request, so you can easily vote and track its status on the following link:
Hope this helps.
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