solstice the time or date (twice each year) at which the sun reaches its maximum or minimum declination, marked by the longest and shortest days (about June 21 and December 22). What's the difference between solstice and equinox? Difference Between Equinox And Solstice - Equinox vs Solstice The summer and winter solstices result in the longest and shortest day of the year respectively while the equinoxes result in an equal amount of daylight and darkness received all across the earth. 至日 太阳达到最大或最小赤纬的时间或日期(每年两次),以最长和最短的日子为标志(大约 6 月 21 日和 12 月 22 日)。 至日和春分有什么区别? 春分和夏至的区别 - 春分与至日 夏至和冬至分别导致一年中白天最长和最短,而春分导致整个地球接收到的日照和黑夜相等。