Week number 1 (Week 1) 2022

Updated on by Michael Mühl

Week number 1 of the next year 2022 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 1/2022

Monday, January  3, 2022

Sunday, January  9, 2022

ISO-Notation: 2022‑W01

American calculation

In the USA, Canada and most Latin American countries, Australia as well as in Japan, Israel, South Korea and others, the following definition of week 1 applies:

Week number 1/2022

Saturday, January  1, 2022

Saturday, January  1, 2022

The date of the calendar week 1 (Week 1) in the past and coming years

The following table provides an overview of the calendar week 1 for each year. The beginning of the calendar week 1 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 1, 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 e.g. Japan.

Week number 1
Year Calculation
method
Start of week 1End of week 1ISO name
2012 European Monday, January  2, 2012Sunday, January  8, 20122012‑W01
American Sunday, January  1, 2012Saturday, January  7, 2012-
2013 European Monday, December 31, 2012Sunday, January  6, 20132013‑W01
American Tuesday, January  1, 2013Saturday, January  5, 2013-
2014 European Monday, December 30, 2013Sunday, January  5, 20142014‑W01
American Wednesday, January  1, 2014Saturday, January  4, 2014-
2015 European Monday, December 29, 2014Sunday, January  4, 20152015‑W01
American Thursday, January  1, 2015Saturday, January  3, 2015-
2016 European Monday, January  4, 2016Sunday, January 10, 20162016‑W01
American Friday, January  1, 2016Saturday, January  2, 2016-
2017 European Monday, January  2, 2017Sunday, January  8, 20172017‑W01
American Sunday, January  1, 2017Saturday, January  7, 2017-
2018 European Monday, January  1, 2018Sunday, January  7, 20182018‑W01
American Monday, January  1, 2018Saturday, January  6, 2018-
2019 European Monday, December 31, 2018Sunday, January  6, 20192019‑W01
American Tuesday, January  1, 2019Saturday, January  5, 2019-
2020 European Monday, December 30, 2019Sunday, January  5, 20202020‑W01
American Wednesday, January  1, 2020Saturday, January  4, 2020-
2021 European Monday, January  4, 2021Sunday, January 10, 20212021‑W01
American Friday, January  1, 2021Saturday, January  2, 2021-
2022 European Monday, January  3, 2022Sunday, January  9, 20222022‑W01
American Saturday, January  1, 2022Saturday, January  1, 2022-
2023 European Monday, January  2, 2023Sunday, January  8, 20232023‑W01
American Sunday, January  1, 2023Saturday, January  7, 2023-
2024 European Monday, January  1, 2024Sunday, January  7, 20242024‑W01
American Monday, January  1, 2024Saturday, January  6, 2024-
2025 European Monday, December 30, 2024Sunday, January  5, 20252025‑W01
American Wednesday, January  1, 2025Saturday, January  4, 2025-
2026 European Monday, December 29, 2025Sunday, January  4, 20262026‑W01
American Thursday, January  1, 2026Saturday, January  3, 2026-
2027 European Monday, January  4, 2027Sunday, January 10, 20272027‑W01
American Friday, January  1, 2027Saturday, January  2, 2027-
2028 European Monday, January  3, 2028Sunday, January  9, 20282028‑W01
American Saturday, January  1, 2028Saturday, January  1, 2028-
2029 European Monday, January  1, 2029Sunday, January  7, 20292029‑W01
American Monday, January  1, 2029Saturday, January  6, 2029-
2030 European Monday, December 31, 2029Sunday, January  6, 20302030‑W01
American Tuesday, January  1, 2030Saturday, January  5, 2030-
2031 European Monday, December 30, 2030Sunday, January  5, 20312031‑W01
American Wednesday, January  1, 2031Saturday, January  4, 2031-
2032 European Monday, December 29, 2031Sunday, January  4, 20322032‑W01
American Thursday, January  1, 2032Saturday, January  3, 2032-

Determine week 1 or other calendar weeks in the calculator

In the calendar week calculator, the entry for the European ISO calendar week 1 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 June 19, 2021

The pages of the "Week Numbers" category were last editorially reviewed by Michael Mühl on June 19, 2021. They all correspond to the current status.

Previous changes on June 25, 2020