The summer solstice marks the longest day and shortest night of the year in the Northern Hemisphere—the moment when the sun reaches its highest point in the sky. This countdown tool below tracks the days, hours, minutes, and seconds until the next solstice.
When is the summer solstice?
The summer solstice typically falls on June 20th or 21st, depending on the year and your timezone. The exact moment varies because the Earth's orbit isn't perfectly synchronized with the calendar.
Countdown features
- Live countdown – Days, hours, minutes, and seconds until the solstice
- Visual progress bar – See how far through the wait you are
- Automatic year rollover – After each solstice passes, it targets the next one
- Timezone detection – Attempts to show the countdown in your local time
The astronomy of summer solstice
On the summer solstice, the sun reaches its most northerly declination. If you're at 40°N latitude (roughly New York City or Madrid), you'll get over 15 hours of daylight. Check my sun angle calculator to see the sun's elevation at your location, or my sunrise sunset calculator for exact times.
