Week Number 43 (Week 43) 2021

Updated on by Michael Mühl

Week Number 43 of the current year 2021 is defined as follows:

European and Asian calculation

Mainly in Europe and Asia, the international ISO 8601 definition is used for counting calendar weeks:

Week Number 43/2021

Monday, October 25, 2021

Sunday, October 31, 2021

ISO: 2021‑W43

American calculation

In the USA, Canada and most Latin American countries, Australia, Japan, Israel, South Korea and others, the following definition of Week 43 applies:

Week Number 43/2021

Sunday, October 17, 2021

Saturday, October 23, 2021

The date of the calendar Week 43 (Week 43) in the past and coming years

The following table provides an overview of the calendar Week 43 for each year. The beginning of the calendar Week 43 and its end are shown according to the two most commonly used definitions of calendar weeks worldwide. The first is the international ISO standard for Week 43, referred to here as the "European" calculation method. It is mainly used in Europe and Asia. On the other hand, the "American" calculation method for weeks is listed, which is mainly used in North and South America, Australia and Japan.

Week Number 43
Year Calculation
Method
Start of Week 43End of Week 43ISO Name
2011 European Monday, October 24, 2011Sunday, October 30, 20112011‑W43
American Sunday, October 16, 2011Saturday, October 22, 2011-
2012 European Monday, October 22, 2012Sunday, October 28, 20122012‑W43
American Sunday, October 21, 2012Saturday, October 27, 2012-
2013 European Monday, October 21, 2013Sunday, October 27, 20132013‑W43
American Sunday, October 20, 2013Saturday, October 26, 2013-
2014 European Monday, October 20, 2014Sunday, October 26, 20142014‑W43
American Sunday, October 19, 2014Saturday, October 25, 2014-
2015 European Monday, October 19, 2015Sunday, October 25, 20152015‑W43
American Sunday, October 18, 2015Saturday, October 24, 2015-
2016 European Monday, October 24, 2016Sunday, October 30, 20162016‑W43
American Sunday, October 16, 2016Saturday, October 22, 2016-
2017 European Monday, October 23, 2017Sunday, October 29, 20172017‑W43
American Sunday, October 22, 2017Saturday, October 28, 2017-
2018 European Monday, October 22, 2018Sunday, October 28, 20182018‑W43
American Sunday, October 21, 2018Saturday, October 27, 2018-
2019 European Monday, October 21, 2019Sunday, October 27, 20192019‑W43
American Sunday, October 20, 2019Saturday, October 26, 2019-
2020 European Monday, October 19, 2020Sunday, October 25, 20202020‑W43
American Sunday, October 18, 2020Saturday, October 24, 2020-
2021 European Monday, October 25, 2021Sunday, October 31, 20212021‑W43
American Sunday, October 17, 2021Saturday, October 23, 2021-
2022 European Monday, October 24, 2022Sunday, October 30, 20222022‑W43
American Sunday, October 16, 2022Saturday, October 22, 2022-
2023 European Monday, October 23, 2023Sunday, October 29, 20232023‑W43
American Sunday, October 22, 2023Saturday, October 28, 2023-
2024 European Monday, October 21, 2024Sunday, October 27, 20242024‑W43
American Sunday, October 20, 2024Saturday, October 26, 2024-
2025 European Monday, October 20, 2025Sunday, October 26, 20252025‑W43
American Sunday, October 19, 2025Saturday, October 25, 2025-
2026 European Monday, October 19, 2026Sunday, October 25, 20262026‑W43
American Sunday, October 18, 2026Saturday, October 24, 2026-
2027 European Monday, October 25, 2027Sunday, October 31, 20272027‑W43
American Sunday, October 17, 2027Saturday, October 23, 2027-
2028 European Monday, October 23, 2028Sunday, October 29, 20282028‑W43
American Sunday, October 15, 2028Saturday, October 21, 2028-
2029 European Monday, October 22, 2029Sunday, October 28, 20292029‑W43
American Sunday, October 21, 2029Saturday, October 27, 2029-
2030 European Monday, October 21, 2030Sunday, October 27, 20302030‑W43
American Sunday, October 20, 2030Saturday, October 26, 2030-
2031 European Monday, October 20, 2031Sunday, October 26, 20312031‑W43
American Sunday, October 19, 2031Saturday, October 25, 2031-

Determine Week 43 or other calendar weeks in the calculator

In the Calendar Week Calculator, the entry for the European ISO calendar Week 43 is preset. Of course, you can also enter other values here to determine the date of the beginning of the week or the end of the week.

Calendar Week Calculator for other years

For calendar years further back or in the future, you will find the beginning and end of the corresponding calendar week in the Calendar Week Calculator.

 

Source information

As source for the information in the "Week Numbers" category, we have used in particular:

Last update on September 27, 2021

The pages of the "Week Numbers" category were last editorially reviewed by Michael Mühl on September 27, 2021. They all correspond to the current status.

Previous changes on June 25, 2020