Days Until Start of Summer 2026

Countdown to Start of Summer on Sunday 21 June 2026.

84

DAYS

7

HOURS

19

MINUTES

20

SECONDS

Start of Summer 2026 Date Information

  • Date: 21 June 2026
  • Day of Week: Sunday
  • Regional Rule (United States): Astronomical start of summer in the Northern Hemisphere (21 June)
  • ISO Format: 2026-06-21
  • UK Format: 21/06/2026
  • US Format: 06/21/2026
  • Week of Year: 25
  • Day of Year: 172

Upcoming Start of Summer Dates

  • 2026: Sunday, 21 June
  • 2027: Monday, 21 June
  • 2028: Wednesday, 21 June
  • 2029: Thursday, 21 June
  • 2030: Friday, 21 June

Time Remaining Breakdown

  • Total Days Remaining: 84
  • Total Weeks Remaining: 12
  • Total Hours Remaining: 2,023
  • Total Minutes Remaining: 121,399
  • Total Seconds Remaining: 7,283,960
  • Business Days Remaining: 60
  • Weekend Days Remaining: 25

How this countdown is calculated

This countdown calculates the exact difference between the current UTC timestamp and the event timestamp. For this page, the event timestamp is 00:00 on 21 June 2026, the start of the listed event date. Once the event has passed, it automatically rolls forward to the next valid year. For United States this page uses: Astronomical start of summer in the Northern Hemisphere (21 June).

Other Popular Countdowns

About Start of Summer

Start of Summer in 2026 falls on Sunday, 21 June 2026.

Start of Summer is observed in many places.

This date is calculated each year using the rule: Astronomical start of summer in the Northern Hemisphere (21 June).

Planning for Start of Summer

  • Check local opening hours and closures in the week before Start of Summer.
  • Book travel and major reservations early around peak demand dates.
  • Set reminders for any deadlines that happen shortly before the event.

Frequently Asked Questions

How many days until Start of Summer?

The live counter above shows the exact remaining days, hours, minutes, and seconds until Start of Summer.

When is Start of Summer in 2026?

Start of Summer is on Sunday, 21 June 2026.

Does the date of Start of Summer change every year?

Yes. This page calculates it each year using the rule: Astronomical start of summer in the Northern Hemisphere (21 June).

How many weeks until Start of Summer?

The time breakdown section includes weeks remaining, along with total days and hours.