Week Numbers

Week Numbers for the Year 2047

Knowing the week numbers for 2047 can be helpful for planning events, managing projects, or simply staying organized. Here’s a complete breakdown of all the weeks in 2047, 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 2047

Week NumberStart DateEnd Date
Week 1Dec 31, 2046Jan 6, 2047
Week 2Jan 7, 2047Jan 13, 2047
Week 3Jan 14, 2047Jan 20, 2047
Week 4Jan 21, 2047Jan 27, 2047
Week 5Jan 28, 2047Feb 3, 2047
Week 6Feb 4, 2047Feb 10, 2047
Week 7Feb 11, 2047Feb 17, 2047
Week 8Feb 18, 2047Feb 24, 2047
Week 9Feb 25, 2047Mar 3, 2047
Week 10Mar 4, 2047Mar 10, 2047
Week 11Mar 11, 2047Mar 17, 2047
Week 12Mar 18, 2047Mar 24, 2047
Week 13Mar 25, 2047Mar 31, 2047
Week 14Apr 1, 2047Apr 7, 2047
Week 15Apr 8, 2047Apr 14, 2047
Week 16Apr 15, 2047Apr 21, 2047
Week 17Apr 22, 2047Apr 28, 2047
Week 18Apr 29, 2047May 5, 2047
Week 19May 6, 2047May 12, 2047
Week 20May 13, 2047May 19, 2047
Week 21May 20, 2047May 26, 2047
Week 22May 27, 2047Jun 2, 2047
Week 23Jun 3, 2047Jun 9, 2047
Week 24Jun 10, 2047Jun 16, 2047
Week 25Jun 17, 2047Jun 23, 2047
Week 26Jun 24, 2047Jun 30, 2047
Week 27Jul 1, 2047Jul 7, 2047
Week 28Jul 8, 2047Jul 14, 2047
Week 29Jul 15, 2047Jul 21, 2047
Week 30Jul 22, 2047Jul 28, 2047
Week 31Jul 29, 2047Aug 4, 2047
Week 32Aug 5, 2047Aug 11, 2047
Week 33Aug 12, 2047Aug 18, 2047
Week 34Aug 19, 2047Aug 25, 2047
Week 35Aug 26, 2047Sep 1, 2047
Week 36Sep 2, 2047Sep 8, 2047
Week 37Sep 9, 2047Sep 15, 2047
Week 38Sep 16, 2047Sep 22, 2047
Week 39Sep 23, 2047Sep 29, 2047
Week 40Sep 30, 2047Oct 6, 2047
Week 41Oct 7, 2047Oct 13, 2047
Week 42Oct 14, 2047Oct 20, 2047
Week 43Oct 21, 2047Oct 27, 2047
Week 44Oct 28, 2047Nov 3, 2047
Week 45Nov 4, 2047Nov 10, 2047
Week 46Nov 11, 2047Nov 17, 2047
Week 47Nov 18, 2047Nov 24, 2047
Week 48Nov 25, 2047Dec 1, 2047
Week 49Dec 2, 2047Dec 8, 2047
Week 50Dec 9, 2047Dec 15, 2047
Week 51Dec 16, 2047Dec 22, 2047
Week 52Dec 23, 2047Dec 29, 2047
Week 53Dec 30, 2047Jan 5, 2048

Yes, 2047 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: 14

List the week numbers of the coming years.