Week number 30 (Week 30) 2021

Updated on by Michael Mühl

Week number 30 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 30/2021

Monday, July 26, 2021

Sunday, August  1, 2021

ISO-Notation: 2021‑W30

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 30 applies:

Week number 30/2021

Sunday, July 18, 2021

Saturday, July 24, 2021

The date of the calendar week 30 (Week 30) in the past and coming years

The following table provides an overview of the calendar week 30 for each year. The beginning of the calendar week 30 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 30, 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 30
Year Calculation
method
Start of week 30End of week 30ISO name
2011 European Monday, July 25, 2011Sunday, July 31, 20112011‑W30
American Sunday, July 17, 2011Saturday, July 23, 2011-
2012 European Monday, July 23, 2012Sunday, July 29, 20122012‑W30
American Sunday, July 22, 2012Saturday, July 28, 2012-
2013 European Monday, July 22, 2013Sunday, July 28, 20132013‑W30
American Sunday, July 21, 2013Saturday, July 27, 2013-
2014 European Monday, July 21, 2014Sunday, July 27, 20142014‑W30
American Sunday, July 20, 2014Saturday, July 26, 2014-
2015 European Monday, July 20, 2015Sunday, July 26, 20152015‑W30
American Sunday, July 19, 2015Saturday, July 25, 2015-
2016 European Monday, July 25, 2016Sunday, July 31, 20162016‑W30
American Sunday, July 17, 2016Saturday, July 23, 2016-
2017 European Monday, July 24, 2017Sunday, July 30, 20172017‑W30
American Sunday, July 23, 2017Saturday, July 29, 2017-
2018 European Monday, July 23, 2018Sunday, July 29, 20182018‑W30
American Sunday, July 22, 2018Saturday, July 28, 2018-
2019 European Monday, July 22, 2019Sunday, July 28, 20192019‑W30
American Sunday, July 21, 2019Saturday, July 27, 2019-
2020 European Monday, July 20, 2020Sunday, July 26, 20202020‑W30
American Sunday, July 19, 2020Saturday, July 25, 2020-
2021 European Monday, July 26, 2021Sunday, August  1, 20212021‑W30
American Sunday, July 18, 2021Saturday, July 24, 2021-
2022 European Monday, July 25, 2022Sunday, July 31, 20222022‑W30
American Sunday, July 17, 2022Saturday, July 23, 2022-
2023 European Monday, July 24, 2023Sunday, July 30, 20232023‑W30
American Sunday, July 23, 2023Saturday, July 29, 2023-
2024 European Monday, July 22, 2024Sunday, July 28, 20242024‑W30
American Sunday, July 21, 2024Saturday, July 27, 2024-
2025 European Monday, July 21, 2025Sunday, July 27, 20252025‑W30
American Sunday, July 20, 2025Saturday, July 26, 2025-
2026 European Monday, July 20, 2026Sunday, July 26, 20262026‑W30
American Sunday, July 19, 2026Saturday, July 25, 2026-
2027 European Monday, July 26, 2027Sunday, August  1, 20272027‑W30
American Sunday, July 18, 2027Saturday, July 24, 2027-
2028 European Monday, July 24, 2028Sunday, July 30, 20282028‑W30
American Sunday, July 16, 2028Saturday, July 22, 2028-
2029 European Monday, July 23, 2029Sunday, July 29, 20292029‑W30
American Sunday, July 22, 2029Saturday, July 28, 2029-
2030 European Monday, July 22, 2030Sunday, July 28, 20302030‑W30
American Sunday, July 21, 2030Saturday, July 27, 2030-
2031 European Monday, July 21, 2031Sunday, July 27, 20312031‑W30
American Sunday, July 20, 2031Saturday, July 26, 2031-

Determine week 30 or other calendar weeks in the calculator

In the calendar week calculator, the entry for the European ISO calendar week 30 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