When I work with people in other time zones, I find that it's a lot easier to schedule things if I can actually see their time zone in my calendar. If you are using Outlook, you can configure the calendar so that it shows multiple time zones. To do this, open your Outlook calendar and right-click on the time grid. From the menu that opens, select the "Change Time Zone..." option. In the configuration panel that opens, you'll notice a section labeled "Additional time zone". If check the box next to "Show an additional time zone", and then configure the time zone information, you'll see an additional column of times in your Outlook calendar.