Most are united.....
United with beliefs and worship traditions of the greco roman latin mother church...
The daughters worship the pope’s calendar( the whole world does too), pope’s sabbath (based off of the pope’s calendar) and the pope’s holy days (only found with the pope’s calendar)
But tough to make a living in the world without being a slave to the world’s timekeeping and pope gregory’s calendar..
I mean the world of politics, business and even religions use it as their standard...
Like a modern worldwide babylonian unifying system built in the last 400 plus years..
A counterfeit world for the master counterfeiter...
The Jews overcame their Babylonian captivity and those that returned did return to God for a time. We can do the same and be witnesses the Lord will be pleased with.