This information varies with every place of employment. Look in the employee's manual.
3 days
it has to be 26 - 30 days a year.
10
In the USA, the typical amount of vacation days offered to employees is around 10-15 days per year.
30 days a year. 2.5 days a month
This is a matter of policy for each employer or negotiation between employer and employee or union, so that there is no generally applicable answer.
Depends on the country.
Pilots get 10 to 15 days vacation.
Generally speaking: yes. But many countries allow company rules that say you must use up your vacation days for a given year in that calender year itself or within 3 months after the end of the calender year. After that, you may simply forfeit the right to the days not used up by then. In many countries companies also are under no obligation to pay out your unused vacation days.
365 minus 104 weekends minus 30 vacation minus public holidays = 220 - 225 days
There is NO US law that mandates that any employee is entitled to any vacation time ... So the time that one gets for vacation is at the employers discretion ...
3 days a year