Gregorian calendar, New Style calendar - the solar calendar now in general use, introduced by Gregory XIII in 1582 to correct an error in the Julian calendar by suppressing 10 days, making Oct 5 be called Oct 15, and providing that only centenary years divisible by 400 should be leap years; it was adopted by Great Britain and the American colonies in 1752

Davis' Birthday, Jefferson Davis' Birthday, June 3 - celebrated in southern United States

Flag Day, June 14 - commemorating the adoption of the U.S. flag in 1777

Father's Day - US: third Sunday in June

June 29, Saints Peter and Paul - first celebrated in the 3rd century

Gregorian calendar month - a month in the Gregorian calendar

mid-June - the middle part of June

June 21, midsummer, summer solstice - June 21, when the sun is at its northernmost point

June 24, Midsummer Day, Midsummer's Day, St John's Day - a quarter day in England, Wales, and Ireland

June 23, Midsummer Eve, Midsummer Night, St John's Eve, St John's Night - the night before Midsummer Day

spring, springtime - the season of growth; "the emerging buds were a sure sign of spring"; "he will hold office until the spring of next year"