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Week numbers 2020

Week numbers 2020

2020 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 2020
53 weeks
A long year: it has 53 ISO weeks.
Week 1 starts
Monday, 30 December 2019
the week that contains 4 January
Last week ends
Sunday, 3 January 2021
week 53
1 January 2020
Week 1 of 2020
Weeks 1 and 53 can include days of the neighbouring years: a week belongs to the year that contains its Thursday.

Printable 2020 calendars by countryWith public holidays and week numbers, as a PDF or PNG.

All weeks

The 53 weeks of 2020

  1. Week 1Mon, 30 Dec 2019 – Sun, 5 Jan 2020
  2. Week 2Mon 6 Jan – Sun, 12 Jan 2020
  3. Week 3Mon 13 Jan – Sun, 19 Jan 2020
  4. Week 4Mon 20 Jan – Sun, 26 Jan 2020
  5. Week 5Mon 27 Jan – Sun, 2 Feb 2020
  6. Week 6Mon 3 Feb – Sun, 9 Feb 2020
  7. Week 7Mon 10 Feb – Sun, 16 Feb 2020
  8. Week 8Mon 17 Feb – Sun, 23 Feb 2020
  9. Week 9Mon 24 Feb – Sun, 1 Mar 2020
  10. Week 10Mon 2 Mar – Sun, 8 Mar 2020
  11. Week 11Mon 9 Mar – Sun, 15 Mar 2020
  12. Week 12Mon 16 Mar – Sun, 22 Mar 2020
  13. Week 13Mon 23 Mar – Sun, 29 Mar 2020
  14. Week 14Mon 30 Mar – Sun, 5 Apr 2020
  15. Week 15Mon 6 Apr – Sun, 12 Apr 2020
  16. Week 16Mon 13 Apr – Sun, 19 Apr 2020
  17. Week 17Mon 20 Apr – Sun, 26 Apr 2020
  18. Week 18Mon 27 Apr – Sun, 3 May 2020
  19. Week 19Mon 4 May – Sun, 10 May 2020
  20. Week 20Mon 11 May – Sun, 17 May 2020
  21. Week 21Mon 18 May – Sun, 24 May 2020
  22. Week 22Mon 25 May – Sun, 31 May 2020
  23. Week 23Mon 1 Jun – Sun, 7 Jun 2020
  24. Week 24Mon 8 Jun – Sun, 14 Jun 2020
  25. Week 25Mon 15 Jun – Sun, 21 Jun 2020
  26. Week 26Mon 22 Jun – Sun, 28 Jun 2020
  27. Week 27Mon 29 Jun – Sun, 5 Jul 2020
  28. Week 28Mon 6 Jul – Sun, 12 Jul 2020
  29. Week 29Mon 13 Jul – Sun, 19 Jul 2020
  30. Week 30Mon 20 Jul – Sun, 26 Jul 2020
  31. Week 31Mon 27 Jul – Sun, 2 Aug 2020
  32. Week 32Mon 3 Aug – Sun, 9 Aug 2020
  33. Week 33Mon 10 Aug – Sun, 16 Aug 2020
  34. Week 34Mon 17 Aug – Sun, 23 Aug 2020
  35. Week 35Mon 24 Aug – Sun, 30 Aug 2020
  36. Week 36Mon 31 Aug – Sun, 6 Sept 2020
  37. Week 37Mon 7 Sept – Sun, 13 Sept 2020
  38. Week 38Mon 14 Sept – Sun, 20 Sept 2020
  39. Week 39Mon 21 Sept – Sun, 27 Sept 2020
  40. Week 40Mon 28 Sept – Sun, 4 Oct 2020
  41. Week 41Mon 5 Oct – Sun, 11 Oct 2020
  42. Week 42Mon 12 Oct – Sun, 18 Oct 2020
  43. Week 43Mon 19 Oct – Sun, 25 Oct 2020
  44. Week 44Mon 26 Oct – Sun, 1 Nov 2020
  45. Week 45Mon 2 Nov – Sun, 8 Nov 2020
  46. Week 46Mon 9 Nov – Sun, 15 Nov 2020
  47. Week 47Mon 16 Nov – Sun, 22 Nov 2020
  48. Week 48Mon 23 Nov – Sun, 29 Nov 2020
  49. Week 49Mon 30 Nov – Sun, 6 Dec 2020
  50. Week 50Mon 7 Dec – Sun, 13 Dec 2020
  51. Week 51Mon 14 Dec – Sun, 20 Dec 2020
  52. Week 52Mon 21 Dec – Sun, 27 Dec 2020
  53. Week 53Mon, 28 Dec 2020 – Sun, 3 Jan 2021

What week is it now?201920212026

How it works

Week number

2020 has 53 ISO weeks. It begins on a Wednesday, 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 2020?

2020 has 53 ISO weeks (52 or 53 in any year).

When does week 1 of 2020 start?

Week 1 of 2020 runs Mon, 30 Dec 2019 – Sun, 5 Jan 2020. It is the week that contains 4 January 2020.

Which years after 2020 have 53 weeks?

2026, 2032, 2037, 2043. 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.