I am setting up a conference planner and want the name of a meeting to be the Topic + Date.

The formula I am using is:

CONCATENATE(Topic," - ",{Start Time})

This works, however it formats the date as YYYY-MM-DD and puts alphabet characters in with the time. (see picture)

How can I format this so that it only shows the date, preferably in DD-MM-YYYY format? I need to keep the time field on the record so that it shows what time the conference will start.

Thank you!