Seasons on Earth
At the March equinox, the sun crosses the equator going north. It's often called the start of spring in the northern hemisphere and the start of autumn or fall in the southern
hemisphere. In most of the northern hemisphere, sunrise and sunset happen exactly 12 hours apart just a few days before the March equinox. Likewise, they happen exactly 12 hours
apart just a few days later in most of the southern hemisphere. At and close to the poles, the sun travels along the horizon without really rising or setting.
At the June solstice, the sun is as far north as it goes, at 23.4°. It's often called the start of summer in the northern hemisphere and the start of winter in the southern hemisphere,
even though many people would feel those seasons are already well underway where they are. In most of the northern hemisphere, the sun is up the longest. Likewise, in most of the southern
hemisphere, the sun is up the shortest time. However, at and close to the north pole, the sun never sets. And at and close to the south pole, it never rises.
At the September equinox, the sun crosses the equator going south. People often call it the start of autumn in the northern hemisphere and the start of spring in the southern
hemisphere. For most of the southern hemisphere, sunrise and sunset will happen exactly 12 hours apart a few days before the equinox. And for most of the northern hemisphere, they'll
happen exactly 12 hours apart a few days later. At and close to the poles, the sun travels along the horizon without really rising or setting.
At the December solstice, the sun is as far south as it goes, at 23.4°. This is often called the start of summer in the southern hemisphere and the start of winter in the northern
hemisphere, although those seasons would seem to be well underway at many locations. In most of the southern hemisphere, the days are longest. In most of the northern hemisphere, the
days are shortest. At and close to the south pole, the sun never sets. At and close to the north pole, the sun never rises.
Here are the equinox and solstice times from 2010 through 2029.
|Year||March equinox||June solstice||September equinox||December solstice|
|2010||March 20 at 17:33||June 21 at 11:29||September 23 at 03:09||December 21 at 23:39|
|2011||March 20 at 23:21||June 21 at 17:17||September 23 at 09:05||December 22 at 05:31|
|2012||March 20 at 05:15||June 20 at 23:09||September 22 at 14:49||December 21 at 11:12|
|2013||March 20 at 11:02||June 21 at 05:04||September 22 at 20:45||December 21 at 17:11|
|2014||March 20 at 16:58||June 21 at 10:52||September 23 at 02:30||December 21 at 23:04|
|2015||March 20 at 22:46||June 21 at 16:38||September 23 at 08:21||December 22 at 04:48|
|2016||March 20 at 04:31||June 20 at 22:35||September 22 at 14:22||December 21 at 10:45|
|2017||March 20 at 10:29||June 21 at 04:25||September 22 at 20:02||December 21 at 16:29|
|2018||March 20 at 16:16||June 21 at 10:08||September 23 at 01:55||December 21 at 22:23|
|2019||March 20 at 21:59||June 21 at 15:55||September 23 at 07:51||December 22 at 04:20|
|2020||March 20 at 03:50||June 20 at 21:44||September 22 at 13:31||December 21 at 10:03|
|2021||March 20 at 09:38||June 21 at 03:33||September 22 at 19:22||December 21 at 16:00|
|2022||March 20 at 15:34||June 21 at 09:14||September 23 at 01:04||December 21 at 21:49|
|2023||March 20 at 21:25||June 21 at 14:58||September 23 at 06:51||December 22 at 03:28|
|2024||March 20 at 03:07||June 20 at 20:52||September 22 at 12:44||December 21 at 09:21|
|2025||March 20 at 09:02||June 21 at 02:43||September 22 at 18:20||December 21 at 15:04|
|2026||March 20 at 14:47||June 21 at 08:25||September 23 at 00:06||December 21 at 20:51|
|2027||March 20 at 20:25||June 21 at 14:11||September 23 at 06:02||December 22 at 02:43|
|2028||March 20 at 02:18||June 20 at 20:03||September 22 at 11:46||December 21 at 08:20|
|2029||March 20 at 08:03||June 21 at 01:49||September 22 at 17:39||December 21 at 14:15|