The summer solstice 2027 is the longest day of the year. Below is the exact minute of the solstice by your device’s clock and a countdown to it: the date can differ between time zones.
The moment the Sun climbs highest above the horizon in the year: the longest day and the shortest night in the Northern Hemisphere. It falls on 20 or 21 June, the exact minute changes every year, and the date in your time zone may differ from Moscow’s.
This year—the year is worked out in your browser
Next year—the year is worked out in your browser
Day off or working dayWorking daycelebrated, but the day is a working one
Working days left—holidays and moved days off included · work calendar →
Long weekend—the date does not sit next to a weekend
How the date is worked outaround 21 June, the exact moment by astronomythe same rule every year
By day of the week— Mondays · — Fridays
How many Mondays, Fridays and other weekdays are left until the summer solstice. Worked out in your browser, by your own clock.
Mon—
Tue—
Wed—
Thu—
Fri—
Sat—
Sun—
counting both today and the day of the event
01
Dates by year
independent of when you opened the page
2026—
2027—
2028—
2029—
2030—
02
Frequently asked questions
Summer solstice: Monday, 21 June 2027 at 17:10 Moscow time; Tuesday, 20 June 2028 at 23:01 Moscow time; Thursday, 21 June 2029 at 04:48 Moscow time. The date follows a rule — around 21 June, the exact moment by astronomy — so it is known years ahead. The counter at the top always shows the nearest date, and the “Dates by year” block below lists five years.
The counter at the top of the page shows the days, hours and minutes left until the summer solstice and updates every second by your device’s clock. On the day itself it shows “Today”, and from the next day it counts down to the following year. Nothing needs entering: the date follows the rule.
A solstice or equinox is an instant, the same for the whole Earth, but the calendar date depends on the time zone. If the moment falls in the Moscow evening, Siberia and the Far East are already on the next date. That is why the counter shows the minute by your device’s clock rather than Moscow time.
The moment the Sun climbs highest above the horizon in the year: the longest day and the shortest night in the Northern Hemisphere. It falls on 20 or 21 June, the exact minute changes every year, and the date in your time zone may differ from Moscow’s. On this page: a live countdown, the date this year and next year, the weekday and the working days left until it.
The moments are computed with Jean Meeus’s algorithm from “Astronomical Algorithms”, used by calendars and planetariums. Accuracy is about a minute: reference books may differ from this page by one minute because of rounding. The table for 2026–2040 is part of the site’s code, so the page does not fetch dates from the internet.
Press “Add to your site” under the counter: the widget builder opens with this event. Pick the size and theme, copy the code — a single iframe tag with no scripts — and paste it into an HTML block on your site. The widget updates itself, sets no cookies, congratulates visitors on the day and then counts down to the summer solstice the following year.