Most of the time, public holidays and major festivals are set at the national level countrywide. They are accurate at the time of publishing. However, in some countries public holidays are also set by states and provinces. That’s why some dates of public holidays and festivals may not be included in the official calendars. They are probably insignificant but it doesn’t mean they are not interesting. This is particularly true for those that are based on religious or lunar calendars. So, it’s very important to check the dates before booking any holiday.
Below you will find a list of countries that have complete calendars of public holidays and festivals in 2013 and 2014 (partly). The listings were reviewed and confirmed by local citizens, so I’m pretty confident that the dates are accurate.