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Week numbers 2018

Week numbers 2018

2018 has 52 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 2018
52 weeks
A regular year: it has 52 ISO weeks.
Week 1 starts
Monday, 1 January 2018
the week that contains 4 January
Last week ends
Sunday, 30 December 2018
week 52
1 January 2018
Week 1 of 2018
Weeks 1 and 52 can include days of the neighbouring years: a week belongs to the year that contains its Thursday.

Printable 2018 calendars by countryWith public holidays and week numbers, as a PDF or PNG.

All weeks

The 52 weeks of 2018

  1. Week 1Mon 1 Jan – Sun, 7 Jan 2018
  2. Week 2Mon 8 Jan – Sun, 14 Jan 2018
  3. Week 3Mon 15 Jan – Sun, 21 Jan 2018
  4. Week 4Mon 22 Jan – Sun, 28 Jan 2018
  5. Week 5Mon 29 Jan – Sun, 4 Feb 2018
  6. Week 6Mon 5 Feb – Sun, 11 Feb 2018
  7. Week 7Mon 12 Feb – Sun, 18 Feb 2018
  8. Week 8Mon 19 Feb – Sun, 25 Feb 2018
  9. Week 9Mon 26 Feb – Sun, 4 Mar 2018
  10. Week 10Mon 5 Mar – Sun, 11 Mar 2018
  11. Week 11Mon 12 Mar – Sun, 18 Mar 2018
  12. Week 12Mon 19 Mar – Sun, 25 Mar 2018
  13. Week 13Mon 26 Mar – Sun, 1 Apr 2018
  14. Week 14Mon 2 Apr – Sun, 8 Apr 2018
  15. Week 15Mon 9 Apr – Sun, 15 Apr 2018
  16. Week 16Mon 16 Apr – Sun, 22 Apr 2018
  17. Week 17Mon 23 Apr – Sun, 29 Apr 2018
  18. Week 18Mon 30 Apr – Sun, 6 May 2018
  19. Week 19Mon 7 May – Sun, 13 May 2018
  20. Week 20Mon 14 May – Sun, 20 May 2018
  21. Week 21Mon 21 May – Sun, 27 May 2018
  22. Week 22Mon 28 May – Sun, 3 Jun 2018
  23. Week 23Mon 4 Jun – Sun, 10 Jun 2018
  24. Week 24Mon 11 Jun – Sun, 17 Jun 2018
  25. Week 25Mon 18 Jun – Sun, 24 Jun 2018
  26. Week 26Mon 25 Jun – Sun, 1 Jul 2018
  27. Week 27Mon 2 Jul – Sun, 8 Jul 2018
  28. Week 28Mon 9 Jul – Sun, 15 Jul 2018
  29. Week 29Mon 16 Jul – Sun, 22 Jul 2018
  30. Week 30Mon 23 Jul – Sun, 29 Jul 2018
  31. Week 31Mon 30 Jul – Sun, 5 Aug 2018
  32. Week 32Mon 6 Aug – Sun, 12 Aug 2018
  33. Week 33Mon 13 Aug – Sun, 19 Aug 2018
  34. Week 34Mon 20 Aug – Sun, 26 Aug 2018
  35. Week 35Mon 27 Aug – Sun, 2 Sept 2018
  36. Week 36Mon 3 Sept – Sun, 9 Sept 2018
  37. Week 37Mon 10 Sept – Sun, 16 Sept 2018
  38. Week 38Mon 17 Sept – Sun, 23 Sept 2018
  39. Week 39Mon 24 Sept – Sun, 30 Sept 2018
  40. Week 40Mon 1 Oct – Sun, 7 Oct 2018
  41. Week 41Mon 8 Oct – Sun, 14 Oct 2018
  42. Week 42Mon 15 Oct – Sun, 21 Oct 2018
  43. Week 43Mon 22 Oct – Sun, 28 Oct 2018
  44. Week 44Mon 29 Oct – Sun, 4 Nov 2018
  45. Week 45Mon 5 Nov – Sun, 11 Nov 2018
  46. Week 46Mon 12 Nov – Sun, 18 Nov 2018
  47. Week 47Mon 19 Nov – Sun, 25 Nov 2018
  48. Week 48Mon 26 Nov – Sun, 2 Dec 2018
  49. Week 49Mon 3 Dec – Sun, 9 Dec 2018
  50. Week 50Mon 10 Dec – Sun, 16 Dec 2018
  51. Week 51Mon 17 Dec – Sun, 23 Dec 2018
  52. Week 52Mon 24 Dec – Sun, 30 Dec 2018

What week is it now?201720192026

How it works

Week number

2018 has 52 ISO weeks. It begins on a Monday; only years that begin on a Thursday, or on a Wednesday in a leap year, have 53 weeks.

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 2018?

2018 has 52 ISO weeks (52 or 53 in any year).

When does week 1 of 2018 start?

Week 1 of 2018 runs Mon 1 Jan – Sun, 7 Jan 2018. It is the week that contains 4 January 2018.

Which years after 2018 have 53 weeks?

2020, 2026, 2032, 2037. 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.