SUMMER has officially arrived in the Northern Hemisphere, which so happened to coincide with Father's Day this year.
In 2021, Sunday, June 20, marks the first day of summer in the United States.
When is summer solstice 2021?
The day is also recognized as the longest day of the year in terms of daylight minutes.
Some years summer arrives on June 20, and other years it starts on June 21 or June 22.
Summer runs from June 20 through September 22.
The first day of summer 2021 arrives in the United States on Sunday, June 20, officially starting at 11:32pm Sunday in New York City, New Jersey and Philadelphia.
Los Angeles and San FranciscoChicago
How do we celebrate in the US?
Across the United States, summer solstice is widely celebrated similarly to Memorial Day weekend in late May.
Some folks start their summer vacations on or around June 20, but many celebrate by holding big gatherings with foods, alcohol and music.
Some people even shed their clothes as part of their ritual to welcome the first day of summer.
What is the Stonehenge celebration?
Stonehenge's Midsummer's Eve festival is one of the world's biggest solstice events celebrated in the United Kingdom.
It occurs beside the ancient Neolithic site of Stonehenge in Wiltshire.
The stones are set within a group of Neolithic and Bronze Age monuments, as well as several hundred burial mounds.
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On the solstice, people gather at Stonehenge in the early morning to watch the sun rise over the stones.
You can watch the alignments in action on the Facebook page of English Heritage or on Skyscape.
Unfortunately due to Boris Johnson pushing Freedom Day to July, no events will be scheduled to happen at Stonehenge this year.