Every Elite Dangerous player in Open mode wanting to connect with friends world wide should understand UTC time which is Coordinated Universal Time across the world to meet up with other players. Most computer clocks started connected to an atomic clock in Boulder, Colorado and later others were added in Europe. You can hear Boulder on short wave radio at 10 Mhz. BST is England's version of daylight savings time. Some suggest that Benjamin Franklin invented it but he only suggested it given more time in sunlight to work the crops. Today farmers with awesome technology still likes Daylight Savings Time sunlight to gather the most crops.
It's common time for the military and amateur radio operators talking to the world. X-Pane 11 uses it coordinating a live player fly-in event including ATC live traffic. It is pretty easy from midnight to noon as it is all the same. After that what is 1700 hrs? It is 5 PM subtracting 12 hrs. Still with 1800 hrs subtracting 2 hrs gets 1600 hrs and the 6 which tells us it it 6:00 PM. Perhaps playing ED a clock on the desktop would help with your game.
Talking to other Amateur radio operators world wide in Morse code bypasses all languages and dialects. I'm not sure why.