I’m a little surprised no one’s asked this yet at least to my knowledge on the forum.
I just got a flight simulator app for my i-phone, it’s really good, you can change the time of day and everything, but when you do that, you have to set it by UTC time instead of standard.
Supposedly this is the standard used in aviation. This is nothing like military time as I hoped, the app doesn’t explain how it works, it only gives an example: if you want the sim session set to noon in San Fransisco, that would be about 20h on the UTC clock. Can someone please explain how UTC time really works in detail?