I work in San Francisco with people based in or near Boston, Sydney, Paris, London, Bangalore, Auckland, Amsterdam, and — oh yeah — San Francisco. So I never know what time it is! But I need to know what time it is in all those places when scheduling meetings and doing other cross-time-zone work.
Microsoft 365, Office 365 and Exchange users can get some help working across time zones from Microsoft Outlook on some platforms, as well as from Apple Calendar on macOS and iOS. (The Google Calendar and Samsung Calendar Android clients don’t work with Microsoft 365/Office 365 or Exchange.)
Use the links in the left margin or below to jump to the instructions for your version of Outlook or Apple Calendar.