Week 11 in 2026

WEEK
11

This week starts on Sunday, March 8, 2026 and ends on Saturday, March 14, 2026.

WEEK EUROPE & ISO
11

This week starts on Monday, March 9, 2026 and ends on Sunday, March 15, 2026.

Week 11 of 2026 begins on March 9, 2026 and ends on March 15, 2026. It covers days 68 to 74 of the year and falls in quarter 1.

Weeks since this week: 31

Week 11 of 2026 at a glance

Starts (Monday)March 9, 2026
Ends (Sunday)March 15, 2026
US week (Sunday to Saturday)11 (March 8, 2026)
MonthMarch
QuarterQ1
Days of the year68–74
Year completed at the end of this week20.3%
Weeks left in 2026 after this week42
Weeks in 202653
Even or odd weekOdd

All days in Week 11:

  • Monday, March 9, 2026
  • Tuesday, March 10, 2026
  • Wednesday, March 11, 2026
  • Thursday, March 12, 2026
  • Friday, March 13, 2026
  • Saturday, March 14, 2026
  • Sunday, March 15, 2026

Calendar for March 2026

March 2026
SuMoTuWeThFrSa
Week 101234567
Week 11891011121314
Week 1215161718192021
Week 1322232425262728
Week 14293031
USA Calendar

All Weeks in 2026:

Past & Future Week 11:

US and ISO week numbers

In the US system, where weeks start on Sunday and week 1 is the week that contains 1 January, this is week 11 of 2026. It runs from March 8, 2026 to March 14, 2026.

Even and odd weeks

Week 11 is an odd week. Even and odd week numbers are used for alternating schedules such as shift rotas, school timetables, custody arrangements and waste collection.

Week 11 in other years

FromTo
Week 11 in 2024March 11, 2024March 17, 2024
Week 11 in 2025March 10, 2025March 16, 2025
Week 11 in 2027March 15, 2027March 21, 2027
Week 11 in 2028March 13, 2028March 19, 2028

How week numbers are counted

Most of the world numbers weeks according to the ISO 8601 standard. A week starts on Monday, and week 1 is the week that contains the first Thursday of the year, which is always the week that contains 4 January.

Week 1 of 2026 began on December 29, 2025. 2026 has 53 ISO weeks, because 1 January 2026 falls on a Thursday.

Because of this 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 year.

In the United States, weeks usually start on Sunday and week 1 is the week that contains 1 January, so the US week number can differ from the ISO week number.

Find the week number of a date

Frequently Asked Questions (FAQ)

When does week 11 of 2026 start and end?

Week 11 of 2026 starts on March 9, 2026 and ends on March 15, 2026 (ISO 8601, Monday to Sunday).

Which month is week 11 of 2026 in?

Week 11 of 2026 is in March.

What dates are in week 11 of 2026?

March 9, 2026, March 10, 2026, March 11, 2026, March 12, 2026, March 13, 2026, March 14, 2026, and March 15, 2026

How many weeks does 2026 have?

2026 has 53 ISO weeks, because 1 January 2026 falls on a Thursday.

Is week 11 an even or odd week?

Week 11 is an odd week.

What is the US week number for this week?

In the US system, where weeks start on Sunday and week 1 is the week that contains 1 January, this is week 11 of 2026. It runs from March 8, 2026 to March 14, 2026.

Overview of Week 11

Week 11 of the year often falls in mid-March, a time when the world begins to shake off the last remnants of winter and embrace the first signs of spring. This week is significant for various reasons, from historical events to cultural observances. Readers can expect to learn about key dates, common themes, and activities that define this week. Whether you're looking to understand the historical importance of Week 11 or seeking inspiration for activities, this article will provide a detailed look at what makes this week special.

Summary of Week 11

Week 11 typically includes important dates and observances that hold both historical and cultural significance. Common themes during this week involve the transition from winter to spring, with activities ranging from spring cleaning to celebrating cultural festivals. People generally approach this week with a sense of renewal and anticipation for the warmer days ahead.

Major Themes of Week 11

Week 11 is often associated with themes of renewal, preparation, and celebration. As winter fades, many people start to prepare for the new season by engaging in activities that symbolize a fresh start.

Spring Cleaning

One of the most common activities during Week 11 is spring cleaning. This tradition involves thoroughly cleaning one's home to get rid of the clutter accumulated over the winter months. It symbolizes a fresh start and is often seen as a way to welcome the new season with a clean slate.

Preparation for Gardening

As the weather begins to warm up, many people start preparing their gardens for planting. This involves clearing out dead plants, tilling the soil, and planning what to plant in the coming weeks. Gardening enthusiasts look forward to this time as it marks the beginning of a new growing season.

Significant Historical Events and Observances

Week 11 has seen its share of significant historical events and observances. Here are a few notable ones:

St. Patrick's Day

St. Patrick's Day, celebrated on March 17th, falls within Week 11. This cultural and religious holiday commemorates St. Patrick, the patron saint of Ireland. It is celebrated with parades, wearing green attire, and various festivities that honor Irish culture.

Pi Day

Pi Day is observed on March 14th (3/14) and celebrates the mathematical constant π (pi). This day is often marked by activities related to mathematics, including pie-eating contests and educational events aimed at making math fun and accessible.

Historical Events

  • March 15th, 44 BC: The Ides of March, the date of Julius Caesar's assassination, a turning point in Roman history.
  • March 16th, 1968: The My Lai Massacre during the Vietnam War, a tragic event that had significant implications for U.S. military policy.

Interesting Facts and Cultural Insights

Week 11 offers a wealth of interesting facts and cultural insights. Here are a few to consider:

Daylight Saving Time

In many parts of the world, Week 11 marks the beginning of Daylight Saving Time. Clocks are set forward by one hour, giving people more daylight in the evenings. This change often signifies the start of longer, sunnier days and is a welcome shift for many.

March Equinox

The March equinox, which usually occurs around March 20th or 21st, marks the beginning of spring in the Northern Hemisphere and autumn in the Southern Hemisphere. This event is celebrated in various cultures with festivals and rituals that honor the changing seasons.

Activities and Practices for Week 11

There are numerous activities and practices that can make Week 11 enjoyable and meaningful. Here are some suggestions:

Engage in Spring Cleaning

Dedicate a day or two to thoroughly clean your home. This can involve decluttering, deep cleaning, and organizing your living space. Not only does this create a more pleasant environment, but it also symbolizes a fresh start for the new season.

Plan Your Garden

If you enjoy gardening, use this week to plan your garden. Decide what plants you want to grow, prepare your soil, and start seedlings indoors if necessary. This preparation will set you up for a successful growing season.

Celebrate St. Patrick's Day

Join in the festivities of St. Patrick's Day by attending a parade, wearing green, or cooking traditional Irish dishes. This is a great opportunity to learn more about Irish culture and enjoy time with friends and family.

Participate in Pi Day Activities

Celebrate Pi Day by engaging in math-related activities. You can bake a pie, participate in a math challenge, or attend an educational event. This is a fun way to make math more enjoyable and accessible.

Enjoy the Outdoors

With the weather starting to warm up, take some time to enjoy the outdoors. Go for a hike, have a picnic, or simply take a walk in your local park. The fresh air and natural surroundings can be invigorating and uplifting.

Conclusion

Week 11 of the year is a time of transition and renewal. From historical events and cultural observances to activities that prepare us for the new season, this week offers a variety of ways to engage and celebrate. Whether you're cleaning your home, planning your garden, or enjoying a festive holiday, Week 11 provides ample opportunities to make meaningful and enjoyable memories.