I recently moved my cell service from T-Mobile to Verizon. I upgraded my phone from a Galaxy S4 to a Galaxy S5. Upon connecting the device via Active Sync to our Exchange 2010 Server (SP3 RU7), several recurring appointments that are on my calendar are displaying 1 hour earlier than the actual appointment. (10:15 recurring appointment is 9:15 on the phone). I have confirmed the correct time zone and tested adding new appointments and recurring appointments and all display correctly. It seems this is only affecting previously added appointments. The items show correctly in the Outlook calendar. I also have a second calendar in my mailbox which is used to show the schedule of our server backups and all of the items on it show an hour off on the phone. I reset the device to factory and attempted to configure it again with the same results.
Any ideas what in the world is happening? Thank you in advance.