International Day of Energy Saving
International Day of Energy Saving is held on November 11. This event in the second decade of the month November is annual. 
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The main objective for this day is to to explain the importance that reduction in energy consumption has for society by initiative of the International School Project on resource and energy management.
Similar holidays and events, festivals and interesting facts
International Accounting Day on November 10 (That's the date in 1494 when Venetian mathematician Luca Bartolomeo de Pacioli published an epic tome that included an in-depth look at bookkeeping practices);
World Needleworker Day on November 10 (celebrated since 2013 on St. Παρασκευή. Embroidery lovers consider her their patroness);
World Keratoconus Day on November 10
International Hedgehog Day on November 10
World Orphans Day on November 10
World Origami Day on November 11
Global Shopping Festival or the Biggest Shopping Day on November 11 (formerly Singles' Day);
World Antibiotic Awareness Week on November 12