Summer Solstice 2024 Date And Time And Date. The dates given on this page are based on coordinated universal time (utc), which for practical purposes is equivalent to greenwich mean time (gmt). This page gives the day length in hours, minutes and seconds on solstice day, including previous and next day.
The word solstice comes from the latin words sol (sun) and sistere (to stand still). Date and time of the southern and northern hemisphere summer solstice 2024/2025, which marks the start of summer season.