Normally idioms are language specific, but number of hours and days are the same.
Number of days in a week (or the existence of weeks at all) aren’t universal, though. And technically not even hours.
Only the length of the day, year and moon cycle are universal (or earthiversal).
Your first point is technically correct, but 24-hour days and 7-day weeks are a de facto global standard at this point in history. There are outliers, like the Javanese 5-day week or the experimental 5-day Soviet calendar, but they are few and far between.
Hum… I think the week is more widely adopted than the solar year.
But neither is universal. AFAIK, the length of the day is.
Is it? I know some cultures have a traditional lunar calendar, but I didn’t know there were many that didn’t also use the Gregorian calendar for business.
Which cultures have the seven day week without the solar year?
use the Gregorian calendar for business
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.
