By default, The Events Calendar displays the end time for events that end on the same day.
It might be preferred for some calendars to only display the start time for events that end on the same day. In order to do this, just paste the code snippet below into your theme's functions.php file. After adding the snippet, the end time will no longer display for events that end on the same day when viewing List, Day, Map, Photo, or Single View.
The end time in tooltips in Week and Month View will now also be hidden:
Here's the snippet: