Week 42 in 2026

WEEK
42

This week starts on Sunday, October 11, 2026 and ends on Saturday, October 17, 2026.

WEEK EUROPE & ISO
42

This week starts on Monday, October 12, 2026 and ends on Sunday, October 18, 2026.

Week 42 of 2026 begins on October 12, 2026 and ends on October 18, 2026. It covers days 285 to 291 of the year and falls in quarter 4.

This is the current week.

Week 42 of 2026 at a glance

Starts (Monday)October 12, 2026
Ends (Sunday)October 18, 2026
US week (Sunday to Saturday)42 (October 11, 2026)
MonthOctober
QuarterQ4
Days of the year285–291
Year completed at the end of this week79.7%
Weeks left in 2026 after this week11
Weeks in 202653
Even or odd weekEven

All days in Week 42:

  • Monday, October 12, 2026
  • Tuesday, October 13, 2026
  • Wednesday, October 14, 2026
  • Thursday, October 15, 2026
  • Friday, October 16, 2026
  • Saturday, October 17, 2026
  • Sunday, October 18, 2026

Calendar for October 2026

October 2026
SuMoTuWeThFrSa
Week 40123
Week 4145678910
Week 4211121314151617
Week 4318192021222324
Week 4425262728293031
USA Calendar

All Weeks in 2026:

Past & Future Week 42:

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 42 of 2026. It runs from October 11, 2026 to October 17, 2026.

Even and odd weeks

Week 42 is an even week. Even and odd week numbers are used for alternating schedules such as shift rotas, school timetables, custody arrangements and waste collection.

Week 42 in other years

FromTo
Week 42 in 2024October 14, 2024October 20, 2024
Week 42 in 2025October 13, 2025October 19, 2025
Week 42 in 2027October 18, 2027October 24, 2027
Week 42 in 2028October 16, 2028October 22, 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 42 of 2026 start and end?

Week 42 of 2026 starts on October 12, 2026 and ends on October 18, 2026 (ISO 8601, Monday to Sunday).

Which month is week 42 of 2026 in?

Week 42 of 2026 is in October.

What dates are in week 42 of 2026?

October 12, 2026, October 13, 2026, October 14, 2026, October 15, 2026, October 16, 2026, October 17, 2026, and October 18, 2026

How many weeks does 2026 have?

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

Is week 42 an even or odd week?

Week 42 is an even 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 42 of 2026. It runs from October 11, 2026 to October 17, 2026.

Overview of Week 42

Week 42 of the year is an intriguing period that typically falls in mid-October. This week is often marked by a blend of seasonal changes, cultural observances, and historical events. As autumn deepens in the Northern Hemisphere, people start to prepare for upcoming holidays and enjoy the crisp, cool weather. In this article, we will delve into the key aspects of Week 42, including notable dates, common activities, and significant events that make this week special.

Summary of Week 42

Week 42 usually spans from October 15th to October 21st. During this week, several important themes and activities come to the forefront:

  • Seasonal changes with autumn in full swing.
  • Preparations for Halloween and other fall festivities.
  • Historical events and observances, such as World Food Day.
  • Community activities and cultural celebrations.

People often use this week to enjoy the outdoors, participate in community events, and start planning for the end-of-year celebrations.

Major Themes of Week 42

Week 42 is characterized by a few major themes that resonate with many people:

  • Autumn Activities: As the leaves change color, many enjoy outdoor activities like hiking, apple picking, and visiting pumpkin patches.
  • Holiday Preparations: With Halloween around the corner, this week is often filled with costume planning, decorating, and party preparations.
  • Community Engagement: Events like local fairs, food drives, and cultural festivals are common during this time.

Significant Historical Events and Observances

Several notable events and observances typically fall within Week 42:

  • World Food Day (October 16): This day is dedicated to raising awareness about hunger and promoting food security worldwide. Many organizations host events and campaigns to support this cause.
  • Sweetest Day (Third Saturday in October): Originally a day to share sweets and kind gestures, it has evolved into a time to show appreciation to loved ones.
  • National Boss's Day (October 16 in the U.S.): A day for employees to thank their bosses for their support and leadership.

Interesting Facts and Cultural Insights

Here are some intriguing facts and cultural insights related to Week 42:

  • The autumnal equinox has already passed, and the days are getting shorter, which often leads to a focus on indoor activities and cozy gatherings.
  • In many regions, Week 42 marks the peak of fall foliage, making it a popular time for scenic drives and nature photography.
  • In some cultures, this week is a time for harvest festivals, celebrating the bounty of the season with feasts and communal activities.

Activities and Practices for Week 42

There are plenty of activities and practices that can make Week 42 enjoyable and productive:

  1. Outdoor Adventures: Take advantage of the beautiful fall weather by going for hikes, visiting parks, or having a picnic surrounded by colorful foliage.
  2. Halloween Preparations: Start working on your Halloween costume, carve pumpkins, and decorate your home to get into the festive spirit.
  3. Community Involvement: Participate in local events, volunteer at food drives, or attend cultural festivals to connect with your community.
  4. Seasonal Cooking: Try out new recipes using seasonal ingredients like pumpkins, apples, and squash. Hosting a fall-themed dinner party can be a delightful way to enjoy these flavors.
  5. Self-Care: As the days get shorter and cooler, focus on self-care routines. This could include reading a good book, taking warm baths, or practicing mindfulness and relaxation techniques.

Week 42 offers a unique blend of activities and observances that can enrich your life and bring a sense of community and seasonal joy. Whether you're enjoying the outdoors, preparing for upcoming holidays, or participating in cultural events, there's something for everyone during this vibrant week of the year.