Hello thank you for the great plug in.
Not a big deal but I can't get the "Time Created" to change and match the plugin. I have changed the timezone to UTC-6 in wordpress settings->general, but when I make an appointment it is still stuck 2 hours ahead.  I notice in the documentation is says "Also use only time zones with name." I wasn't sure what that meant, but I also tried changing the time zone to "Edmonton", and it still didn't seem to work. Am I missing a step? Thank you.