June 21 is the 172nd day of the year (173rd in leap years). 193 days remain until the end of the year.
Observances
Day of the Martyrs (Togo)
Father's Day (Egypt, Lebanon, Jordan, Syria, Uganda, Pakistan, United Arab Emirates)
National Aboriginal Day (Canada)
Solstice-related observances:
Day of Private Reflection (Northern Ireland)
National Day (Greenland) (Greenland)
We Tripantu, a winter solstice festival in the southern hemisphere. (Mapuche, southern Chile)
Willkakuti, an Andean-Amazonic New Year (Aymara)
Wagyu Day (US)