Solstice 2024 Dateserial. In the southern hemisphere, it will occur on december 21 at 09:20 gmt (december 21, 04:20 a.m. Canada the exact moment of the summer solstice in 2024 is 20 june, at.

In 2024, the december solstice falls at 9:21 utc on december 21 (3:21 a.m. On june 20, 2024, the summer solstice occurs at its earliest moment since 1796: