Travel time uses wrong start location

Hi Flybr1dge,

Thanks for your post! We understand that you would like to change how travel time determines the start location and what defines 'Work' and 'Home'. We suggest you first refer to the support page: Calendar User Guide

Specifically regarding location and travel time:

"The time to leave is calculated based on the preference you choose in the Maps app in the View > Directions menu. 

Calendar finds your starting location by using the location in any events that are up to 3 hours before this event. If Calendar doesn’t find a location, it uses your work address or home address (from your card in the Contacts app), depending on the time of day. (Set your work hours in Calendar General preferencesusing the “Day starts at” and “Day ends at” pop-up menus.) If your card in Contacts doesn’t have your addresses, Calendar uses your computer’s current location. Determining your computer’s location requires that Location Services be turned on (see Change Privacy preferences)."

Hope this helps.

Best regards.