Hi Valentina,
Thanks again for your interest in Vacation Request!
Vacation Request allows for location specific weekends and holidays. This flexibility allows different physical or logical locations in the same country or city to have different policies regarding time off.
So, for example, you could have a X helpdesk operating in the same building as other employees in your organization. These helpdesk agents might not get any automatic holidays or weekend days off (all time off would need to be requested & approved) while other employees automatically get legal holidays, Saturdays and Sundays off.
Since the addressbook holidays are not location specific then importing them would be problematic. Also, entering all holidays for a location in a given year is not too painful (at least for me). Once entered you can copy/paste them (for a subsequent year) and then just update the years and dates as needed.
HTH,
Bob