Global observance

International Day against Nuclear Tests

International Day against Nuclear Tests is an annual global observance recorded by the United Nations. This countdown follows the published calendar date worldwide and retains the United Nations source for review.

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DateAugust 29, 2026

CountdownWhole calendar days

TimezoneYour local timezone

LocationWorldwide

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When is International Day against Nuclear Tests?

The United Nations lists International Day against Nuclear Tests on August 29, 2026 each year. This countdown follows that published global observance date.

This calendar-date countdown follows your local timezone. It does not invent a universal midnight.