On which day is 'International Yoga Day' celebrated ?

Concept: International Yoga Day is a UN-designated global observance created through United Nations General Assembly Resolution 69/131, adopted on 11 December 2014 after India proposed it at the UN General Assembly on 27 September 2014. The date fixed for the observance, 21 June, was deliberately chosen because it falls in the Summer Solstice window in the Northern Hemisphere — among the year's longest days — a date already regarded as significant in many parts of the world, including the yogic tradition, as marking a natural shift toward a higher phase of awareness.

Application: Following the resolution, the first International Yoga Day was observed worldwide on 21 June 2015, and it has been celebrated on this same fixed date, 21 June, every year since.

Cross-check: Other UN observances also fall in June but on different, unrelated dates, which is a common source of confusion:

• 20 June — World Refugee Day

• 25 June — Day of the Seafarer

Neither shares its date with International Yoga Day, which remains fixed at 21 June.

Result: The correct date is 21 June.