Week 43 in 2026

WEEK
43

This week starts on Sunday, October 18, 2026 and ends on Saturday, October 24, 2026.

WEEK EUROPE & ISO
43

This week starts on Monday, October 19, 2026 and ends on Sunday, October 25, 2026.

Week 43 of 2026 begins on October 19, 2026 and ends on October 25, 2026. It covers days 292 to 298 of the year and falls in quarter 4.

Weeks until this week: 1

Week 43 of 2026 at a glance

Starts (Monday)October 19, 2026
Ends (Sunday)October 25, 2026
US week (Sunday to Saturday)43 (October 18, 2026)
MonthOctober
QuarterQ4
Days of the year292–298
Year completed at the end of this week81.6%
Weeks left in 2026 after this week10
Weeks in 202653
Even or odd weekOdd

All days in Week 43:

  • Monday, October 19, 2026
  • Tuesday, October 20, 2026
  • Wednesday, October 21, 2026
  • Thursday, October 22, 2026
  • Friday, October 23, 2026
  • Saturday, October 24, 2026
  • Sunday, October 25, 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 43:

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 43 of 2026. It runs from October 18, 2026 to October 24, 2026.

Even and odd weeks

Week 43 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 43 in other years

FromTo
Week 43 in 2024October 21, 2024October 27, 2024
Week 43 in 2025October 20, 2025October 26, 2025
Week 43 in 2027October 25, 2027October 31, 2027
Week 43 in 2028October 23, 2028October 29, 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 43 of 2026 start and end?

Week 43 of 2026 starts on October 19, 2026 and ends on October 25, 2026 (ISO 8601, Monday to Sunday).

Which month is week 43 of 2026 in?

Week 43 of 2026 is in October.

What dates are in week 43 of 2026?

October 19, 2026, October 20, 2026, October 21, 2026, October 22, 2026, October 23, 2026, October 24, 2026, and October 25, 2026

How many weeks does 2026 have?

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

Is week 43 an even or odd week?

Week 43 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 43 of 2026. It runs from October 18, 2026 to October 24, 2026.

Week 43: An Overview

Week 43 of the year brings a unique blend of seasonal changes, historical significance, and cultural observances. As the year winds down, this week often serves as a bridge between the vibrant colors of autumn and the early whispers of winter. It's a time when people start to prepare for the end-of-year festivities, and there's a palpable sense of anticipation in the air. In this article, we'll delve into the various aspects that make Week 43 special, from notable events to common activities and observances.

Summary of Week 43

Important Dates

  • October 22-28 (dates may vary slightly depending on the year)

Common Themes and Activities

  • Autumn festivities
  • Preparations for Halloween
  • Seasonal changes and nature walks
  • Historical anniversaries

General Approach

People often use this week to enjoy the last bits of autumn, engage in festive preparations, and reflect on historical events. It's a time for both outdoor activities and cozy indoor gatherings.

Major Themes of Week 43

Autumn Festivities

As Week 43 falls in late October, it's a prime time for autumn activities. The leaves are in full color, making it perfect for nature walks and photography. Pumpkin patches and apple orchards are bustling with families enjoying the harvest season. Many communities host fall festivals featuring hayrides, corn mazes, and seasonal foods like apple cider and pumpkin pie.

Halloween Preparations

Halloween is just around the corner, and Week 43 is often filled with preparations for this spooky holiday. Homes get decorated with ghosts, goblins, and jack-o'-lanterns. Costume parties and haunted houses are common, and children eagerly anticipate trick-or-treating. It's a week of creativity and fun, with people of all ages getting into the spirit of the season.

Seasonal Changes

The weather during Week 43 can be quite variable, with crisp mornings and cool evenings. It's a great time to enjoy outdoor activities like hiking, biking, and camping. The changing foliage provides a stunning backdrop for these activities, making it a popular time for nature enthusiasts.

Historical Significance

Week 43 has its share of historical events. For instance, October 24th is United Nations Day, commemorating the founding of the UN in 1945. This day is often marked by events and discussions focused on global peace and cooperation. Additionally, October 28th is the anniversary of the Statue of Liberty's dedication in 1886, a symbol of freedom and democracy.

Interesting Facts and Cultural Insights

Facts About Week 43

  • In some years, Week 43 includes the last Sunday of October, which is when Daylight Saving Time ends in many countries. This means an extra hour of sleep for many people!
  • The Orionid meteor shower, which peaks in late October, can often be observed during Week 43. It's a great time for stargazing.

Cultural Insights

In many cultures, Week 43 is a time for harvest festivals and thanksgiving celebrations. These events often involve feasting, music, and community gatherings. It's a time to give thanks for the bounty of the season and to prepare for the colder months ahead.

Activities and Practices for Week 43

Outdoor Activities

  • Nature Walks: Enjoy the fall foliage and crisp air.
  • Harvest Festivals: Visit local farms and participate in seasonal activities.
  • Stargazing: Look for the Orionid meteor shower.

Indoor Activities

  • Halloween Preparations: Decorate your home and carve pumpkins.
  • Cooking and Baking: Make seasonal dishes like pumpkin pie and apple cider.
  • Reading and Reflection: Learn about historical events and their significance.

Community Involvement

  • Volunteer Work: Participate in community service projects.
  • Local Events: Attend local festivals and cultural events.

Week 43 offers a rich tapestry of activities and observances that cater to a wide range of interests. Whether you're enjoying the great outdoors, preparing for Halloween, or reflecting on historical milestones, there's something for everyone. Embrace the spirit of the season and make the most of this vibrant week!