from the thread i started here this morning:
Just updated to version 1.9 Standard from 1.8.x Lite and the times of my existing events were off by +8 GMT (yes, I have the correct time zone set in the WP settings and had it set correctly in Calendar 1.8.x; it was also set correctly in 1.9 Standard).
I deleted and entered the events again. Recurring events display the first date and time correctly (-8 GMT) but subsequent events display as +8 GMT. I’ve posted a message to Timely support; others have had this same issue with previous versions of the Pro version, apparently.