Global observance

International Mountain Day

International Mountain Day 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.

132

days to go

DateDecember 11, 2026

CountdownWhole calendar days

TimezoneYour local timezone

LocationWorldwide

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Good to know

When is International Mountain Day?

The United Nations lists International Mountain Day on December 11, 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.