Dashboards often have a filter that sets the number of days to consider. By clicking on the "Filters" section you can see this filter:
You can then use the dropdown menu to change the filter selection as you wish:
In this process you can now filter the reports according to the start time of events or the time of bookings:
When all filters have been set to your liking, click Run. The data will now be updated according to the filters set. You can find this button in the top right corner.
An overview of all filters can be found here.