Hi, Josephine.
Thanks for your interest in our plugin suite.
All events require a start and end date and time.
However, hiding this information on the front-end to your site visitors should be possible but would definitely require custom coding, which we do not provide.
If you need some coding help, you may want to ask your developer or reference our documentation and list of known customizers.
Last but not least, we have a pretty great Refund Policy so you can buy one or many of our add-ons and thoroughly test them.
I hope this info helps. Let me know if you have any follow-up questions.