Days Until Summer

A live countdown to summer (June 20). See the days remaining plus a running hours, minutes and seconds timer — free and running entirely in your browser.

– days until Summer  
 
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100% free, no sign-up Runs in your browser Updates every second

How many days until summer?

This countdown targets the first day of summer in the Northern Hemisphere — the June solstice, which falls on June 20 or 21 depending on the year. The timer above uses June 20 as a consistent reference.

The big number shows the days remaining and the live timer counts down hours, minutes and seconds.

How the date is worked out

Astronomical summer in the Northern Hemisphere begins at the June solstice, when the Sun reaches its northernmost point. The exact moment drifts between June 20 and June 21 from year to year (and shifts with time zones), so this page uses June 20 as a steady reference date. Meteorological summer is defined differently — it starts on June 1 and runs through August — which is why you'll sometimes see both dates described as the 'start of summer'. In the Southern Hemisphere the seasons are reversed, and June marks the start of winter.

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Frequently Asked Questions

When does summer start?
Astronomical summer in the Northern Hemisphere starts at the June solstice, on June 20 or 21. This countdown uses June 20 as a fixed reference; meteorological summer starts on June 1.
Is this the solstice exactly?
The solstice moment varies by a day and by time zone each year, so the page counts to June 20 for consistency rather than to the precise astronomical instant.
Does this work for the Southern Hemisphere?
This page counts to the Northern-Hemisphere start of summer. South of the equator the seasons are reversed, so June is the start of winter there.