Week Numbers

Week Numbers for the Year 2024

Knowing the week numbers for 2024 can be helpful for planning events, managing projects, or simply staying organized. Here’s a complete breakdown of all the weeks in 2024, including their start and end dates.

What Are Week Numbers?

Week numbers are a standardized way of counting the weeks in a year. Each week is assigned a number from 1 to 52 (sometimes 53), depending on how the calendar aligns with the start of the year. According to the ISO 8601 standard, each week starts on a Monday, and Week 1 is the week that contains the first Thursday of the year.

Week Number Table for 2024

Week NumberStart DateEnd Date
Week 1Jan 1, 2024Jan 7, 2024
Week 2Jan 8, 2024Jan 14, 2024
Week 3Jan 15, 2024Jan 21, 2024
Week 4Jan 22, 2024Jan 28, 2024
Week 5Jan 29, 2024Feb 4, 2024
Week 6Feb 5, 2024Feb 11, 2024
Week 7Feb 12, 2024Feb 18, 2024
Week 8Feb 19, 2024Feb 25, 2024
Week 9Feb 26, 2024Mar 3, 2024
Week 10Mar 4, 2024Mar 10, 2024
Week 11Mar 11, 2024Mar 17, 2024
Week 12Mar 18, 2024Mar 24, 2024
Week 13Mar 25, 2024Mar 31, 2024
Week 14Apr 1, 2024Apr 7, 2024
Week 15Apr 8, 2024Apr 14, 2024
Week 16Apr 15, 2024Apr 21, 2024
Week 17Apr 22, 2024Apr 28, 2024
Week 18Apr 29, 2024May 5, 2024
Week 19May 6, 2024May 12, 2024
Week 20May 13, 2024May 19, 2024
Week 21May 20, 2024May 26, 2024
Week 22May 27, 2024Jun 2, 2024
Week 23Jun 3, 2024Jun 9, 2024
Week 24Jun 10, 2024Jun 16, 2024
Week 25Jun 17, 2024Jun 23, 2024
Week 26Jun 24, 2024Jun 30, 2024
Week 27Jul 1, 2024Jul 7, 2024
Week 28Jul 8, 2024Jul 14, 2024
Week 29Jul 15, 2024Jul 21, 2024
Week 30Jul 22, 2024Jul 28, 2024
Week 31Jul 29, 2024Aug 4, 2024
Week 32Aug 5, 2024Aug 11, 2024
Week 33Aug 12, 2024Aug 18, 2024
Week 34Aug 19, 2024Aug 25, 2024
Week 35Aug 26, 2024Sep 1, 2024
Week 36Sep 2, 2024Sep 8, 2024
Week 37Sep 9, 2024Sep 15, 2024
Week 38Sep 16, 2024Sep 22, 2024
Week 39Sep 23, 2024Sep 29, 2024
Week 40Sep 30, 2024Oct 6, 2024
Week 41Oct 7, 2024Oct 13, 2024
Week 42Oct 14, 2024Oct 20, 2024
Week 43Oct 21, 2024Oct 27, 2024
Week 44Oct 28, 2024Nov 3, 2024
Week 45Nov 4, 2024Nov 10, 2024
Week 46Nov 11, 2024Nov 17, 2024
Week 47Nov 18, 2024Nov 24, 2024
Week 48Nov 25, 2024Dec 1, 2024
Week 49Dec 2, 2024Dec 8, 2024
Week 50Dec 9, 2024Dec 15, 2024
Week 51Dec 16, 2024Dec 22, 2024
Week 52Dec 23, 2024Dec 29, 2024
Week 53Dec 30, 2024Jan 5, 2025

Yes, 2024 has 53 weeks! This happens when the year starts on a Thursday or is a leap year that ends on a Thursday—allowing for that extra ISO week.

Why Are Week Numbers Useful?

Week numbers are used in a variety of scenarios across professional and personal settings:

Fun Fact

The ISO 8601 week-numbering system was first introduced in 1988 and is used by many countries around the world, especially in Europe. The U.S. doesn't commonly use it, but many global systems rely on it for consistency.

Find the Week Number of Any Date

Want to know the week number of a specific date? In PHP, you can use the DateTime object like this:

Week number is: 18

List the week numbers of the coming years.