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Thank you very much for your visit.

Alter Ego Services is a software and data consulting company, founded in Nantes, France, in 1999, in part to commercialize Q++ Studio, the diary and calendar publishing software system used by the world's foremost diary and calendar publishers.

The other part of our activity, based on research begun in 1989, is the maintenance of the Worldwide Public Holidays Database, which predicts public holidays dates and observances in all 197 countries and 50+ semi-autonomous territories (Hong Kong, Macau, Gibraltar, ...) of the world, for the next 20, 30, 50 or even 100 years.

We also publish the Q++ Worldwide Public Holidays News blog, which contains public holidays news, updates and analysis, based on a daily review of hundreds of online newspapers, government sites, and institutional sources. This blog is visited daily by the world's foremost diary and calendar publishers, banks, financial institutions, logistics companies, shipping and brokerage firms, government agencies, NGOs, and other websites who refer to it to keep their own listings up to date.

This site contains a lot of free information that is also of interest to non-professionals, so please take the time to visit our site and don't hesitate to contact us if you have any comments or questions.

Very best regards,

Olivier Beltrami


1989-2017 Alter Ego Services