Week number 53 (Week 53) 2021

Updated on by Michael Mühl

Week number 53 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 53/2021

2021 week 53 does not exist

2021 has only 52 calendar weeks

ISO-Notation: 2021‑W53

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 53 applies:

Week number 53/2021

Sunday, December 26, 2021

Friday, December 31, 2021

The date of the calendar week 53 (Week 53) in the past and coming years

The following table provides an overview of the calendar week 53 for each year. The beginning of the calendar week 53 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 53, 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 53
Year Calculation
method
Start of week 53End of week 53ISO name
2011 European 2011 week 53 does not exist2011 has only 52 calendar weeks2011‑W53
American Sunday, December 25, 2011Saturday, December 31, 2011-
2012 European 2012 week 53 does not exist2012 has only 52 calendar weeks2012‑W53
American Sunday, December 30, 2012Monday, December 31, 2012-
2013 European 2013 week 53 does not exist2013 has only 52 calendar weeks2013‑W53
American Sunday, December 29, 2013Tuesday, December 31, 2013-
2014 European 2014 week 53 does not exist2014 has only 52 calendar weeks2014‑W53
American Sunday, December 28, 2014Wednesday, December 31, 2014-
2015 European Monday, December 28, 2015Sunday, January  3, 20162015‑W53
American Sunday, December 27, 2015Thursday, December 31, 2015-
2016 European 2016 week 53 does not exist2016 has only 52 calendar weeks2016‑W53
American Sunday, December 25, 2016Saturday, December 31, 2016-
2017 European 2017 week 53 does not exist2017 has only 52 calendar weeks2017‑W53
American Sunday, December 31, 2017Sunday, December 31, 2017-
2018 European 2018 week 53 does not exist2018 has only 52 calendar weeks2018‑W53
American Sunday, December 30, 2018Monday, December 31, 2018-
2019 European 2019 week 53 does not exist2019 has only 52 calendar weeks2019‑W53
American Sunday, December 29, 2019Tuesday, December 31, 2019-
2020 European Monday, December 28, 2020Sunday, January  3, 20212020‑W53
American Sunday, December 27, 2020Thursday, December 31, 2020-
2021 European 2021 week 53 does not exist2021 has only 52 calendar weeks2021‑W53
American Sunday, December 26, 2021Friday, December 31, 2021-
2022 European 2022 week 53 does not exist2022 has only 52 calendar weeks2022‑W53
American Sunday, December 25, 2022Saturday, December 31, 2022-
2023 European 2023 week 53 does not exist2023 has only 52 calendar weeks2023‑W53
American Sunday, December 31, 2023Sunday, December 31, 2023-
2024 European 2024 week 53 does not exist2024 has only 52 calendar weeks2024‑W53
American Sunday, December 29, 2024Tuesday, December 31, 2024-
2025 European 2025 week 53 does not exist2025 has only 52 calendar weeks2025‑W53
American Sunday, December 28, 2025Wednesday, December 31, 2025-
2026 European Monday, December 28, 2026Sunday, January  3, 20272026‑W53
American Sunday, December 27, 2026Thursday, December 31, 2026-
2027 European 2027 week 53 does not exist2027 has only 52 calendar weeks2027‑W53
American Sunday, December 26, 2027Friday, December 31, 2027-
2028 European 2028 week 53 does not exist2028 has only 52 calendar weeks2028‑W53
American Sunday, December 24, 2028Saturday, December 30, 2028-
2029 European 2029 week 53 does not exist2029 has only 52 calendar weeks2029‑W53
American Sunday, December 30, 2029Monday, December 31, 2029-
2030 European 2030 week 53 does not exist2030 has only 52 calendar weeks2030‑W53
American Sunday, December 29, 2030Tuesday, December 31, 2030-
2031 European 2031 week 53 does not exist2031 has only 52 calendar weeks2031‑W53
American Sunday, December 28, 2031Wednesday, December 31, 2031-

Determine week 53 or other calendar weeks in the calculator

In the calendar week calculator, the entry for the European ISO calendar week 53 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