Where the title has to hold still
Choose the words knowing they travel. The same line appears on the page itself, in the confirmation your registrants receive, in the reminder emails before the start, and in every invitation message you post โ and a title that mutates between those places reads as three different events to somebody who was forwarded two of them. Write it once, then paste rather than retype.
Two housekeeping notes on length and labels. Keep it short enough to survive a phone screen without wrapping into a block nobody parses, and put the date and the start time in their own fields rather than stuffed into the headline; the page shows the time with its zone beside it, so a title carrying a date is a title that goes stale the moment you move the session. On labels, the product knows two: webinar and workshop. Pick whichever describes the session and leave the invented third category alone.