Hey Wendy,
Sorry to see you’ve run into this issue. It’s 11:10 PM as I write this response. I set up a two test events, the first is set for January 25, 2017 from 8:00 AM – 11:30 PM and the second on January 25, 2017 from 11:15 PM – 11:30 PM. Neither event is displaying the “This event has passed.” message.

Before opening new threads, we ask you review our Testing for conflicts guide to rule out the potential of a theme and/or plugin conflict, so please go ahead and review the guide and let me know what the results are. This is a required step to continue receiving support.
Thank you and I look forward to your response. Cheers!