Summer Countdown
As of October 17, 2026 there are 247 days until the first day of summer: Monday, June 21, 2027.
Monday, June 21, 2027
How many days until the first day of summer?
As of October 17, 2026, the first day of summer is 247 days away. That is 35 weeks and 2 days, or 68% of a year; the timer above has the exact figure for today in your time zone.
First day of summer dates, 2027 to 2032
| Year | Date | Day | Starts (UTC) | US Eastern time |
|---|---|---|---|---|
| 2027 | Monday | June 21, 2027, 14:10 UTC | Monday, June 21, 2027 at 10:10 AM EDT | |
| 2028 | Tuesday | June 20, 2028, 20:01 UTC | Tuesday, June 20, 2028 at 4:01 PM EDT | |
| 2029 | Thursday | June 21, 2029, 01:48 UTC | Wednesday, June 20, 2029 at 9:48 PM EDT | |
| 2030 | Friday | June 21, 2030, 07:31 UTC | Friday, June 21, 2030 at 3:31 AM EDT | |
| 2031 | Saturday | June 21, 2031, 13:17 UTC | Saturday, June 21, 2031 at 9:17 AM EDT | |
| 2032 | Sunday | June 20, 2032, 19:08 UTC | Sunday, June 20, 2032 at 3:08 PM EDT |
The season starts at one moment worldwide, so the calendar date depends on your time zone. The countdown above uses your device's clock.
When does summer start in 2027? Dates through 2036
How the date of the first day of summer is set
Astronomical summer in the Northern Hemisphere begins at the June solstice, which falls on June 20 or 21 in most years.
The US Naval Observatory publishes the equinox and solstice times. The times on this page are calculated with Jean Meeus's method and agree with them to within a minute or two.
Also coming up: the first day of fall on Thursday, September 23, 2027, Fourth of July on Sunday, July 4, 2027, and Memorial Day on Monday, May 31, 2027.
June solstice facts
At the June solstice the Sun reaches its northernmost point in the sky, giving the Northern Hemisphere its longest day of the year.
At the June solstice the Sun stands directly over the Tropic of Cancer. By the Gregorian calendar it falls between June 20 and June 22.
- Meteorologists count summer from June 1 instead.
- In the Southern Hemisphere the June solstice is the start of winter, and summer begins at the December solstice.
How the summer countdown counts
The timer runs to the exact moment of the June solstice. The days figure in the sentence above counts calendar days in your time zone.
For a span between any two dates, with weeks and working days, use the days between dates calculator. To count down to a date of your own, create a countdown with its own link.
Put the summer countdown on your site
Copy this code into any web page. It shows a small live countdown that links back here.
Questions about the summer countdown
How many weeks until the first day of summer?
35 weeks and 2 days as of October 17, 2026, or 247 days in all. The countdown at the top of this page updates to today's number in your own time zone.
How many days until summer break?
That depends on your school, because each school or district sets its own last day. This countdown runs to the June solstice, the start of astronomical summer. For your last day of school, create a countdown to that date.
When does the summer countdown reach zero?
At the moment of the June solstice: June 21, 2027, 14:10 UTC, which is 10:10 AM EDT on the US East Coast. The whole world reaches zero at the same instant, so the calendar date can differ by time zone.
Can I add the June solstice to my calendar?
Yes. "Add to calendar" downloads an .ics file for June 21, 2027 that calendar apps such as Apple Calendar, Google Calendar and Outlook can import.
When is the first day of summer in 2028?
Tuesday, June 20, 2028. The first day of summer dates page lists every year through 2036.
Sources
- US Naval Observatory: Earth's Seasons — published equinox and solstice times (checked October 16, 2026)
- Wikipedia: June solstice — history and traditions (checked October 16, 2026)