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  1. Home
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  3. Week number
  4. 2004

Week numbers 2004

Week numbers 2004

2004 has 53 ISO weeks. Each row gives the Monday and the Sunday of the week. Print this page for a plain list of the weeks.

Weeks in 2004
53 weeks
A long year: it has 53 ISO weeks.
Week 1 starts
Monday, 29 December 2003
the week that contains 4 January
Last week ends
Sunday, 2 January 2005
week 53
1 January 2004
Week 1 of 2004
Weeks 1 and 53 can include days of the neighbouring years: a week belongs to the year that contains its Thursday.

Printable 2004 calendars by countryWith public holidays and week numbers, as a PDF or PNG.

All weeks

The 53 weeks of 2004

  1. Week 1Mon, 29 Dec 2003 – Sun, 4 Jan 2004
  2. Week 2Mon 5 Jan – Sun, 11 Jan 2004
  3. Week 3Mon 12 Jan – Sun, 18 Jan 2004
  4. Week 4Mon 19 Jan – Sun, 25 Jan 2004
  5. Week 5Mon 26 Jan – Sun, 1 Feb 2004
  6. Week 6Mon 2 Feb – Sun, 8 Feb 2004
  7. Week 7Mon 9 Feb – Sun, 15 Feb 2004
  8. Week 8Mon 16 Feb – Sun, 22 Feb 2004
  9. Week 9Mon 23 Feb – Sun, 29 Feb 2004
  10. Week 10Mon 1 Mar – Sun, 7 Mar 2004
  11. Week 11Mon 8 Mar – Sun, 14 Mar 2004
  12. Week 12Mon 15 Mar – Sun, 21 Mar 2004
  13. Week 13Mon 22 Mar – Sun, 28 Mar 2004
  14. Week 14Mon 29 Mar – Sun, 4 Apr 2004
  15. Week 15Mon 5 Apr – Sun, 11 Apr 2004
  16. Week 16Mon 12 Apr – Sun, 18 Apr 2004
  17. Week 17Mon 19 Apr – Sun, 25 Apr 2004
  18. Week 18Mon 26 Apr – Sun, 2 May 2004
  19. Week 19Mon 3 May – Sun, 9 May 2004
  20. Week 20Mon 10 May – Sun, 16 May 2004
  21. Week 21Mon 17 May – Sun, 23 May 2004
  22. Week 22Mon 24 May – Sun, 30 May 2004
  23. Week 23Mon 31 May – Sun, 6 Jun 2004
  24. Week 24Mon 7 Jun – Sun, 13 Jun 2004
  25. Week 25Mon 14 Jun – Sun, 20 Jun 2004
  26. Week 26Mon 21 Jun – Sun, 27 Jun 2004
  27. Week 27Mon 28 Jun – Sun, 4 Jul 2004
  28. Week 28Mon 5 Jul – Sun, 11 Jul 2004
  29. Week 29Mon 12 Jul – Sun, 18 Jul 2004
  30. Week 30Mon 19 Jul – Sun, 25 Jul 2004
  31. Week 31Mon 26 Jul – Sun, 1 Aug 2004
  32. Week 32Mon 2 Aug – Sun, 8 Aug 2004
  33. Week 33Mon 9 Aug – Sun, 15 Aug 2004
  34. Week 34Mon 16 Aug – Sun, 22 Aug 2004
  35. Week 35Mon 23 Aug – Sun, 29 Aug 2004
  36. Week 36Mon 30 Aug – Sun, 5 Sept 2004
  37. Week 37Mon 6 Sept – Sun, 12 Sept 2004
  38. Week 38Mon 13 Sept – Sun, 19 Sept 2004
  39. Week 39Mon 20 Sept – Sun, 26 Sept 2004
  40. Week 40Mon 27 Sept – Sun, 3 Oct 2004
  41. Week 41Mon 4 Oct – Sun, 10 Oct 2004
  42. Week 42Mon 11 Oct – Sun, 17 Oct 2004
  43. Week 43Mon 18 Oct – Sun, 24 Oct 2004
  44. Week 44Mon 25 Oct – Sun, 31 Oct 2004
  45. Week 45Mon 1 Nov – Sun, 7 Nov 2004
  46. Week 46Mon 8 Nov – Sun, 14 Nov 2004
  47. Week 47Mon 15 Nov – Sun, 21 Nov 2004
  48. Week 48Mon 22 Nov – Sun, 28 Nov 2004
  49. Week 49Mon 29 Nov – Sun, 5 Dec 2004
  50. Week 50Mon 6 Dec – Sun, 12 Dec 2004
  51. Week 51Mon 13 Dec – Sun, 19 Dec 2004
  52. Week 52Mon 20 Dec – Sun, 26 Dec 2004
  53. Week 53Mon, 27 Dec 2004 – Sun, 2 Jan 2005

What week is it now?200320052026

How it works

Week number

2004 has 53 ISO weeks. It begins on a Thursday, and a year has 53 weeks when 1 January is a Thursday, or a Wednesday in a leap year. The extra week comes at the end of the year.

ISO 8601 numbers the weeks of a year from 1 to 52 or 53. Weeks run from Monday to Sunday, and week 1 is the week that holds the first Thursday of the year, which is also the week that contains 4 January. Each week belongs to the year that contains its Thursday.

Questions

Good to know

How many weeks are there in 2004?

2004 has 53 ISO weeks (52 or 53 in any year).

When does week 1 of 2004 start?

Week 1 of 2004 runs Mon, 29 Dec 2003 – Sun, 4 Jan 2004. It is the week that contains 4 January 2004.

Which years after 2004 have 53 weeks?

2009, 2015, 2020, 2026. A year has 53 ISO weeks when 1 January is a Thursday, or a Wednesday in a leap year.

How do I get a printable list or calendar?

Use the print button above for this list of weeks, or open the printable calendar of your country: it marks the public holidays and shows the ISO week number of every week.

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