Week Numbers for the Year 2040
Knowing the week numbers for 2040 can be helpful for planning events, managing projects, or simply staying organized. Here’s a complete breakdown of all the weeks in 2040, 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 2040
| Week Number | Start Date | End Date |
|---|---|---|
| Week 1 | Jan 2, 2040 | Jan 8, 2040 |
| Week 2 | Jan 9, 2040 | Jan 15, 2040 |
| Week 3 | Jan 16, 2040 | Jan 22, 2040 |
| Week 4 | Jan 23, 2040 | Jan 29, 2040 |
| Week 5 | Jan 30, 2040 | Feb 5, 2040 |
| Week 6 | Feb 6, 2040 | Feb 12, 2040 |
| Week 7 | Feb 13, 2040 | Feb 19, 2040 |
| Week 8 | Feb 20, 2040 | Feb 26, 2040 |
| Week 9 | Feb 27, 2040 | Mar 4, 2040 |
| Week 10 | Mar 5, 2040 | Mar 11, 2040 |
| Week 11 | Mar 12, 2040 | Mar 18, 2040 |
| Week 12 | Mar 19, 2040 | Mar 25, 2040 |
| Week 13 | Mar 26, 2040 | Apr 1, 2040 |
| Week 14 | Apr 2, 2040 | Apr 8, 2040 |
| Week 15 | Apr 9, 2040 | Apr 15, 2040 |
| Week 16 | Apr 16, 2040 | Apr 22, 2040 |
| Week 17 | Apr 23, 2040 | Apr 29, 2040 |
| Week 18 | Apr 30, 2040 | May 6, 2040 |
| Week 19 | May 7, 2040 | May 13, 2040 |
| Week 20 | May 14, 2040 | May 20, 2040 |
| Week 21 | May 21, 2040 | May 27, 2040 |
| Week 22 | May 28, 2040 | Jun 3, 2040 |
| Week 23 | Jun 4, 2040 | Jun 10, 2040 |
| Week 24 | Jun 11, 2040 | Jun 17, 2040 |
| Week 25 | Jun 18, 2040 | Jun 24, 2040 |
| Week 26 | Jun 25, 2040 | Jul 1, 2040 |
| Week 27 | Jul 2, 2040 | Jul 8, 2040 |
| Week 28 | Jul 9, 2040 | Jul 15, 2040 |
| Week 29 | Jul 16, 2040 | Jul 22, 2040 |
| Week 30 | Jul 23, 2040 | Jul 29, 2040 |
| Week 31 | Jul 30, 2040 | Aug 5, 2040 |
| Week 32 | Aug 6, 2040 | Aug 12, 2040 |
| Week 33 | Aug 13, 2040 | Aug 19, 2040 |
| Week 34 | Aug 20, 2040 | Aug 26, 2040 |
| Week 35 | Aug 27, 2040 | Sep 2, 2040 |
| Week 36 | Sep 3, 2040 | Sep 9, 2040 |
| Week 37 | Sep 10, 2040 | Sep 16, 2040 |
| Week 38 | Sep 17, 2040 | Sep 23, 2040 |
| Week 39 | Sep 24, 2040 | Sep 30, 2040 |
| Week 40 | Oct 1, 2040 | Oct 7, 2040 |
| Week 41 | Oct 8, 2040 | Oct 14, 2040 |
| Week 42 | Oct 15, 2040 | Oct 21, 2040 |
| Week 43 | Oct 22, 2040 | Oct 28, 2040 |
| Week 44 | Oct 29, 2040 | Nov 4, 2040 |
| Week 45 | Nov 5, 2040 | Nov 11, 2040 |
| Week 46 | Nov 12, 2040 | Nov 18, 2040 |
| Week 47 | Nov 19, 2040 | Nov 25, 2040 |
| Week 48 | Nov 26, 2040 | Dec 2, 2040 |
| Week 49 | Dec 3, 2040 | Dec 9, 2040 |
| Week 50 | Dec 10, 2040 | Dec 16, 2040 |
| Week 51 | Dec 17, 2040 | Dec 23, 2040 |
| Week 52 | Dec 24, 2040 | Dec 30, 2040 |
| Week 53 | Dec 31, 2040 | Jan 6, 2041 |
Yes, 2040 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:
- Software Development: Sprint planning and agile iterations often use weekly cycles.
- Business Operations: Sales goals, reporting cycles, and payroll often reference week numbers.
- Education: Academic calendars may follow weekly structures, particularly in Europe.
- Travel & Hospitality: Hotels, airlines, and tour companies often plan based on week-based pricing and schedules.
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.