I have the time and date on the bottom of my computer screen (along with info on speakers / power levels / internet connection etc.)
I assume this is a standard calendar feature. (i have it on both my computers.)
I use it occasionally (e.g. to check what date next Tuesday is.)
Recently I noticed that two of my friends in the US (I’m in the UK) are named, together with their local time on one of my computers.
This is jolly useful (e.g. for arranging Skype chats or playing games online.)
However I didn’t set it up!
So how did it get there?!
And why is it only on one computer? (It is the one I use for Skyping, if that helps.)
If you’re logged into a Windows computer using the same Microsoft account that you use for Skype and other Microsoft services such as Hotmail, Onedrive, and Outlook calendar, then the OS has access to some of the stuff happening in those places.
Assuming you mean on a Windows computer, you can also right-click in the displayed date/time. choose “Adjust date/time” from the pop-up menu. That will open a Settings window. Scroll down to the bottom of that window. Under “Related settings” is “Add clocks for different time zones”. You can add up to two more clocks each set to a different TZ. I used that feature regularly when I had customers on other continents.