Well, I only know how it tends to work in China, where the traditional calendar is used for cultural events such as festivals, while the Gregorian calendar is used for just about everything else, including domestic business. I assumed it’s the same in most modern cultures with a different traditional calendar, but maybe I’m wrong.
AKA, to talk to foreigners. Everybody that doesn’t use the Gregorian calendar uses it to talk to foreigners, if that’s the bar, then it’s universal.
Well, I only know how it tends to work in China, where the traditional calendar is used for cultural events such as festivals, while the Gregorian calendar is used for just about everything else, including domestic business. I assumed it’s the same in most modern cultures with a different traditional calendar, but maybe I’m wrong.