Momence sends Transactional emails to customers with class start times shown in the customer's current time zone. This is helpful if you're offering online classes with customers in many different time zones. Everyone will need to see their own start times to arrive when class starts.
However, you may have a reason to show start times to customers in your time zone every time. Maybe your studio is right on a time zone border and its just easier for clients to see the start time in your time zone each time.
To make this change, click Settings > General Setup > scroll to Misc. Account Settings > toggle on 'Send transactional emails in my timezone instead of customer's timezone.'