What Day Is April 21?
April 21, 2026 is a Tuesday.
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Diwali
The festival of lights, celebrated by Hindus, Sikhs, Jains and many Buddhists with lamps, fireworks, sweets and prayers for prosperity.
World Science Day for Peace and Development
A UNESCO day highlighting the role of science in society and the need to involve the public in debates on science.
Remembrance Day
A memorial day in Commonwealth countries honouring members of the armed forces who died in war, observed at 11 a.m. on November…
Veterans Day (United States)
A US federal holiday honouring everyone who has served in the United States armed forces.
World Kindness Day
A day encouraging acts of kindness, big and small, between people everywhere.
World Diabetes Day
The world's largest diabetes awareness campaign, led by the International Diabetes Federation on the birthday of insulin co-discoverer Frederick Banting.