Please provide more detailed information on what time zone you have for your calendar and server.
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I added my license code. Both are set to the Eastern Standard Time zone (New York). But I don’t believe it is a time zone issue as there is a different number of days booked.
Please try to add another booking and check if the dates are wrong again and let us know the result. Also, please note that ours counts from midnight to midnight, so this is most likely a issue with a third-party calendar.