Week 15 2023

Week 15 2023
Week Number 15 in 2023

Week Numbers ﹣ Week 15 2023

Week Number 15 of the current year 2023 is defined as follows.

European and Asian calculation

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

Monday, April 10, 2023 – Sunday, April 16, 2023

ISO: 2023‑W15
Week Number 2023

American calculation

In the USA, Canada and most Latin American countries, Australia, Japan, Israel, South Korea and others, the following definition of Week 15 applies:

Week Number 15/2023

Sunday, April 9, 2023

Saturday, April 15, 2023


The date of the calendar Week  15 and other years

The following table provides an overview of the calendar Week 15 for each year. The beginning of the calendar Week 15 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 15, 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 15
Year Calculation
Start of Week 15End of Week 15ISO Name
2020 European Monday, April 6, 2020Sunday, April 12, 20202020‑W15
American Sunday, April 5, 2020Saturday, April 11, 2020-
2021 European Monday, April 12, 2021Sunday, April 18, 20212021‑W15
American Sunday, April 4, 2021Saturday, April 10, 2021-
2022 European Monday, April 11, 2022Sunday, April 17, 20222022‑W15
American Sunday, April 3, 2022Saturday, April 9, 2022-
2023 European Monday, April 10, 2023Sunday, April 16, 20232023‑W15
American Sunday, April 9, 2023Saturday, April 15, 2023-
2024 European Monday, April 8, 2024Sunday, April 14, 20242024‑W15
American Sunday, April 7, 2024Saturday, April 13, 2024-
2025 European Monday, April 7, 2025Sunday, April 13, 20252025‑W15
American Sunday, April 6, 2025Saturday, April 12, 2025-
2026 European Monday, April 6, 2026Sunday, April 12, 20262026‑W15
American Sunday, April 5, 2026Saturday, April 11, 2026-

Determine Week 15 or other calendar weeks in the calculator

In the Calendar Week Calculator, the entry for the European ISO calendar Week 15 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 March 20, 2023

The pages of the 'Week Numbers' category were last editorially reviewed by Michael Mühl on March 20, 2023. They all correspond to the current status.

Previous changes on June 25, 2021