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Week Numbers for 2023

Complete list of ISO 8601 week number for 2023, showing the start and end dates for each week. Week 1 contains January 4th.

52 weeks in 2023

←2022
2023
2024→
Week 01
From Date (Monday): January 2, 2023
To Date (Sunday): January 8, 2023
Week 02
From Date (Monday): January 9, 2023
To Date (Sunday): January 15, 2023
Week 03
From Date (Monday): January 16, 2023
To Date (Sunday): January 22, 2023
Week 04
From Date (Monday): January 23, 2023
To Date (Sunday): January 29, 2023
Week 05
From Date (Monday): January 30, 2023
To Date (Sunday): February 5, 2023
Week 06
From Date (Monday): February 6, 2023
To Date (Sunday): February 12, 2023
Week 07
From Date (Monday): February 13, 2023
To Date (Sunday): February 19, 2023
Week 08
From Date (Monday): February 20, 2023
To Date (Sunday): February 26, 2023
Week 09
From Date (Monday): February 27, 2023
To Date (Sunday): March 5, 2023
Week 10
From Date (Monday): March 6, 2023
To Date (Sunday): March 12, 2023
Week 11
From Date (Monday): March 13, 2023
To Date (Sunday): March 19, 2023
Week 12
From Date (Monday): March 20, 2023
To Date (Sunday): March 26, 2023
Week 13
From Date (Monday): March 27, 2023
To Date (Sunday): April 2, 2023
Week 14
From Date (Monday): April 3, 2023
To Date (Sunday): April 9, 2023
Week 15
From Date (Monday): April 10, 2023
To Date (Sunday): April 16, 2023
Week 16
From Date (Monday): April 17, 2023
To Date (Sunday): April 23, 2023
Week 17
From Date (Monday): April 24, 2023
To Date (Sunday): April 30, 2023
Week 18
From Date (Monday): May 1, 2023
To Date (Sunday): May 7, 2023
Week 19
From Date (Monday): May 8, 2023
To Date (Sunday): May 14, 2023
Week 20
From Date (Monday): May 15, 2023
To Date (Sunday): May 21, 2023
Week 21
From Date (Monday): May 22, 2023
To Date (Sunday): May 28, 2023
Week 22
From Date (Monday): May 29, 2023
To Date (Sunday): June 4, 2023
Week 23
From Date (Monday): June 5, 2023
To Date (Sunday): June 11, 2023
Week 24
From Date (Monday): June 12, 2023
To Date (Sunday): June 18, 2023
Week 25
From Date (Monday): June 19, 2023
To Date (Sunday): June 25, 2023
Week 26
From Date (Monday): June 26, 2023
To Date (Sunday): July 2, 2023
Week 27
From Date (Monday): July 3, 2023
To Date (Sunday): July 9, 2023
Week 28
From Date (Monday): July 10, 2023
To Date (Sunday): July 16, 2023
Week 29
From Date (Monday): July 17, 2023
To Date (Sunday): July 23, 2023
Week 30
From Date (Monday): July 24, 2023
To Date (Sunday): July 30, 2023
Week 31
From Date (Monday): July 31, 2023
To Date (Sunday): August 6, 2023
Week 32
From Date (Monday): August 7, 2023
To Date (Sunday): August 13, 2023
Week 33
From Date (Monday): August 14, 2023
To Date (Sunday): August 20, 2023
Week 34
From Date (Monday): August 21, 2023
To Date (Sunday): August 27, 2023
Week 35
From Date (Monday): August 28, 2023
To Date (Sunday): September 3, 2023
Week 36
From Date (Monday): September 4, 2023
To Date (Sunday): September 10, 2023
Week 37
From Date (Monday): September 11, 2023
To Date (Sunday): September 17, 2023
Week 38
From Date (Monday): September 18, 2023
To Date (Sunday): September 24, 2023
Week 39
From Date (Monday): September 25, 2023
To Date (Sunday): October 1, 2023
Week 40
From Date (Monday): October 2, 2023
To Date (Sunday): October 8, 2023
Week 41
From Date (Monday): October 9, 2023
To Date (Sunday): October 15, 2023
Week 42
From Date (Monday): October 16, 2023
To Date (Sunday): October 22, 2023
Week 43
From Date (Monday): October 23, 2023
To Date (Sunday): October 29, 2023
Week 44
From Date (Monday): October 30, 2023
To Date (Sunday): November 5, 2023
Week 45
From Date (Monday): November 6, 2023
To Date (Sunday): November 12, 2023
Week 46
From Date (Monday): November 13, 2023
To Date (Sunday): November 19, 2023
Week 47
From Date (Monday): November 20, 2023
To Date (Sunday): November 26, 2023
Week 48
From Date (Monday): November 27, 2023
To Date (Sunday): December 3, 2023
Week 49
From Date (Monday): December 4, 2023
To Date (Sunday): December 10, 2023
Week 50
From Date (Monday): December 11, 2023
To Date (Sunday): December 17, 2023
Week 51
From Date (Monday): December 18, 2023
To Date (Sunday): December 24, 2023
Week 52
From Date (Monday): December 25, 2023
To Date (Sunday): December 31, 2023

This 2023 ISO week calendar maps out when each week begins (Monday) and wraps up (Sunday) — so you can keep sprints, payroll cycles, and team reporting on track without guesswork.

  • •Weeks are grouped by quarter, making it easier to align product launches with your fiscal calendar.
  • •The current week automatically highlights based on your timezone — perfect when your team spans multiple cities.
  • •Download the calendar images to drop into your briefs, dashboards, or planning docs.

Need a different year? The year selector lets you jump anywhere from 2015 to 2035 in one click.

2023 Week Numbers Calendar Images

2023 Week Number Calendar - Blue Purple Theme

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2023 Week Number Calendar - Light Theme

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Select Year for Week Number

2023
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Week Numbers 2023 - Complete with Start and End Dates