Time slot interval allows you to select the heatmap and table view intervals. You can choose between a 1-hour or 2-hour interval. If your tee time range is starting at 10.00, a 1-hour interval will cause the first block to become 10.00-10.59. A 2-hour interval will cause the first block to become 10.00-11.59. This setting only affects booking results.
Does it affect my data?
It does not affect your data, but simply groups up the data into 1-hour or 2-hour intervals.