DWA and time zone

Hi! doesn’t Domino Web Access read the user’s machine local time in order to display the correct time in the inbox view ? That’s what I thought but we’ve updated one of our server’s operating system time from UTC-3 to UTC-2 and DWA still presents the old time for the inbox view. I’ve seen that it’s possible to define the time zone in the calendar settings but we’ve a mix of users from different time zones, how should we cope with this situation? Thanks for any information about this.