What week of the year is July 1, 2026?

Week 27

ISO week of 2026

Jun 29 – Jul 5, 2026

Week details

W27ISO week
Jun 29week starts (Mon)
Jul 5week ends (Sun)
53weeks in 2026
1stweek of the month
Q3quarter
Wednesdayweekday
98days since week started

Which week is it?

Wednesday, July 1, 2026 falls in ISO week 27 of 2026. That week runs from Monday Monday, June 29, 2026 to Sunday Sunday, July 5, 2026, and it touches June and July. The ISO year 2026 has 53 weeks in total, so this is week 27 of 53, or about 51% of the way through the ISO year.

How ISO week numbers work

ISO 8601 weeks begin on Monday, and week 1 is the week that contains the first Thursday of the year. Because of that rule, the first days of January can belong to the last week of the previous year and the last days of December can belong to week 1 of the next. Most years have 52 weeks; roughly every five or six years a 53rd week is added to keep the count aligned with the seasons.

Planning by week

Schedules in manufacturing, logistics, education and project management are often written in week numbers, for example a delivery in week 27 or a sprint that ends in week 29. The week began 98 days ago. Keep in mind that US calendars often start the week on Sunday and use a different rule for week 1, so week numbers can differ between countries.

Nearby weeks

The week before is week 26, and the week after is week 28. The year pages list every week with its date range, and the week-number pages link to each of them.

Frequently asked questions

What week number is July 1, 2026?

ISO week 27 of 2026.

When does week 27 of 2026 start?

On Monday, Monday, June 29, 2026.

When does week 27 of 2026 end?

On Sunday, Sunday, July 5, 2026.

How many weeks are in 2026?

53 ISO weeks.

Which day starts the ISO week?

Monday.

What defines week 1?

The week containing the first Thursday of the year.

Can a date in January belong to the previous year's week?

Yes, when January 1 to 3 fall before the first Thursday.

What week of the month is it?

The 1st week of the month, counting by seven-day blocks from the 1st.

RESULT & PLANNING

Use this calculation

What Week Is July 1, 2026?: Week 27 ISO week of 2026 — Jun 29 – Jul 5, 2026

How this calculation was worked out

The result uses the exact inputs on this page and calendar/time arithmetic appropriate to this calculator. The result shown above is the value to use for this calculation.

Working days and weekends

96Calendar days
68Weekdays
14Saturdays
14Sundays
Not included unless this calculator says otherwisePublic holidays

Practical planning milestones

  1. Calculated dateWednesday, July 1, 2026

Accuracy and limitations

  • The result uses the calendar rules and time zone shown on this page.
  • Leap years and actual month lengths are handled by the calendar arithmetic where they affect the calculation.

Save or share this result

Calculation history

Machine-readable result
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