Enter the date of the upcoming Summer Solstice to see how many days are left until the first day of summer.
Astronomical summer begins on the Summer Solstice, usually June 20 or 21.
Choose the Summer Solstice date above to see your countdown.
How This Summer Countdown Works
This countdown calculates how many days are left until the first day of summer, based on the astronomical Summer Solstice. It uses your device’s local date and time for accuracy.
Summer Countdown FAQ
What date should I enter?
Enter the official Summer Solstice date for the upcoming year (usually June 20 or 21).
Does the first day of summer change every year?
Yes — the Summer Solstice can fall on June 20, 21, or occasionally June 22 depending on the year.
Can I change the date later?
Yes. Just pick a new date and click “Show Countdown” again.
Does this use my time zone?
Yes. The countdown is based on your device’s local date and time.