21 June

June 21 is the 172nd day of the year (173rd in leap years) in the Gregorian calendar. There are 193 days remaining until the end of the year. This date is slightly more likely to fall on a Tuesday, Thursday or Sunday (58 in 400 years each) than on Friday or Saturday (57), and slightly less likely to occur on a Monday or Wednesday (56).

This day usually marks the summer solstice in the Northern Hemisphere and the winter solstice in the Southern Hemisphere, which is the day of the year with the most hours of daylight in the Northern Hemisphere and the fewest hours of daylight in the Southern Hemisphere.

See Summer solstice for celebrations pertaining to it.

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