Your conference can include people from anywhere in the world. The system will keep track of the different time zones each participant is in so that everyone receives notifications converted to their own local time.  You indicate the time zone for each participant when you add them to your address book or to a conference invitee list.  We will send an e-mail invitation message to each of the participants in your conference call informing them of the conference date and time and providing them with a chance to accept or decline your invitation.