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United Nations · Worldwide

International Day against Nuclear Tests is coming up.

Sunday, 29 August 2027

A week before, the day before and on the day. No account, nothing else.

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About International Day against Nuclear Tests

International Day against Nuclear Tests is one of the international days on the United Nations list. The UN uses these days to draw attention to an issue and to what people around the world are doing about it.

In 2027 it falls on a Sunday; in 2028 it’s on Tuesday 29 August, and in 2029 on Wednesday 29 August. This time it falls at the weekend; some countries move the day off to a weekday when that happens. Also in August 2027: National Lesbian Visibility Day (29 Aug), Summer bank holiday (30 Aug) and National Toasted Marshmallow Day (30 Aug). From this page you can add it to your calendar, get an email before it, share the countdown, or show it full screen.

How we work out the date
It’s on 29 August every year, as set by the United Nations.
Sources

Page updated 5 November 2026. Report a wrong date

Dates

YearDate
2027Sunday, 29 August
2028Tuesday, 29 August
2029Wednesday, 29 August
2030Thursday, 29 August
2031Friday, 29 August
2032Sunday, 29 August
2033Monday, 29 August
2034Tuesday, 29 August
2035Wednesday, 29 August
2036Friday, 29 August

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