Will the Exchange tool update all meeting reminders, regardless if the user's Outlook client has never been in on-line mode?

Q: Will the Exchange tool update all meeting reminders, regardless if the user's Outlook client has never been in on-line mode? There seems to be a lot of confusion around this topic. Thanks.
A: The Exchange tool can update meeting reminders even if the client has never connected in on-line mode. The tool will update the meeting reminders whenever it can detect a known time zone for the client. On-line mode is one way that Exchange would know the client time zone. However, the tool can determine a time zone by looking at recurring meetings on a cached mode client and then rebasing based on that. If there are no recurring meetings in the affected window and the client has never been on line then the Exchange tool will not be able to update that client.