When Is Summer Solstice 2025 In India. It also lists astronomical sunrise and sunset timings on summer solstice day. Spring equinox 20 march, summer solstice 21 june, autumn equinox 22 september, winter solstice 21 december.
The spring or vernal equinox marks the astronomical first day of spring. The following table gives the date and time of the important astronomical events for the year.