If you don't already know, the story of why UTC is the "acronym" for Coordinated Universal Time is short, but fun: https://www.timeanddate.com/time/utc-abbreviation.html I used "UTC" for years without noticing it isn't really an acronym.
...To avoid discussion between English 'CUT' and French 'TUC', a form that does not place the substantive, 'T', neither before nor after the attributes - just in the middle. ("Universal Time, Coordinated [standard]"?) Nice!