The Q++Studio Worldwide Public Holidays Database
This database is made up of recurrence rules (such as: Good Friday = 2 days before Easter) so that, in principle, you could use the current database, and Q++Studio, to immediately calculate world holidays for the next 100 or even 200 years.
Deepavali in Singapore
However, in real life, the rules for celebrating holidays do change; some are added, some are removed, some are renamed, ... Therefore, we constantly monitor worldwide news sources and government sources to ensure that the rules that are contained in the Q++ Worldwide Public Holidays Database always remain up to date.
Use the updater for this constantly updates worldwide public holidays database to ensure that your Q++Studio system has all the most up to date rules of the worldwide public holidays.
You can then use the holidays synchronization function to update the rules of international public holidays used in your own recurring holidays sets.