/* Date systems. 0 = traditional, 1 = Jalali used by Iran, nabour countries, Afghanistan and some other Central Asian nations,
2 = Islamic used by other arabic nations. 3 = traditional, but where non-workday is Friday and start of week is Saturday */
/* Date systems. 0 = traditional, 1 = Jalali used by Iran, nabour countries, Afghanistan and some other Central Asian nations,
2 = Islamic used by other arabic nations. 3 = traditional, but where non-workday is Friday and start of week is Saturday */