What's the current Week Number?

Get current week number according to the ISO-8601 standard.

 
Current Week Number : 22

Week 22 start date is Monday, 29 May 2023 and end date is Sunday, 04 June 2023 as per ISO-8601 standard.

The ISO week-numbering year starts at the first day (Monday) of week 01 and ends at the Sunday before the new ISO year (hence without overlap or gap). It consists of 52 or 53 full weeks. The first ISO week of a year may have up to three days that are actually in the calendar year that is ending; if three, they are Monday, Tuesday and Wednesday. Similarly, the last ISO week of a year may have up to three days that are actually in the calendar year that is starting; if three, they are Friday, Saturday, and Sunday. The Thursday of each ISO week is always in the calendar year denoted by the ISO week-numbering year.

There are several mutually equivalent and compatible descriptions of week 01:

  • the week with the year's first Thursday in it (the formal ISO definition),
  • the week with 4 January in it,
  • the first week with the majority (four or more) of its days in the starting year, and
  • the week starting with the Monday in the period 29 December – 4 January.

As a consequence, if 1 January is on a Monday, Tuesday, Wednesday or Thursday, it is in week 01. If 1 January is on a Friday, Saturday or Sunday, it is in week 52 or 53 of the previous year (there is no week 00). 28 December is always in the last week of its year.

The week number can be described by counting the Thursdays: week 12 contains the 12th Thursday of the year.

Current year weeks with start and end date :

Week Number Week Start Date Week End Date
01 02 January 2023 08 January 2023
02 09 January 2023 15 January 2023
03 16 January 2023 22 January 2023
04 23 January 2023 29 January 2023
05 30 January 2023 05 February 2023
06 06 February 2023 12 February 2023
07 13 February 2023 19 February 2023
08 20 February 2023 26 February 2023
09 27 February 2023 05 March 2023
10 06 March 2023 12 March 2023
11 13 March 2023 19 March 2023
12 20 March 2023 26 March 2023
13 27 March 2023 02 April 2023
14 03 April 2023 09 April 2023
15 10 April 2023 16 April 2023
16 17 April 2023 23 April 2023
17 24 April 2023 30 April 2023
18 01 May 2023 07 May 2023
19 08 May 2023 14 May 2023
20 15 May 2023 21 May 2023
21 22 May 2023 28 May 2023
22 29 May 2023 04 June 2023
23 05 June 2023 11 June 2023
24 12 June 2023 18 June 2023
25 19 June 2023 25 June 2023
26 26 June 2023 02 July 2023
27 03 July 2023 09 July 2023
28 10 July 2023 16 July 2023
29 17 July 2023 23 July 2023
30 24 July 2023 30 July 2023
31 31 July 2023 06 August 2023
32 07 August 2023 13 August 2023
33 14 August 2023 20 August 2023
34 21 August 2023 27 August 2023
35 28 August 2023 03 September 2023
36 04 September 2023 10 September 2023
37 11 September 2023 17 September 2023
38 18 September 2023 24 September 2023
39 25 September 2023 01 October 2023
40 02 October 2023 08 October 2023
41 09 October 2023 15 October 2023
42 16 October 2023 22 October 2023
43 23 October 2023 29 October 2023
44 30 October 2023 05 November 2023
45 06 November 2023 12 November 2023
46 13 November 2023 19 November 2023
47 20 November 2023 26 November 2023
48 27 November 2023 03 December 2023
49 04 December 2023 10 December 2023
50 11 December 2023 17 December 2023
51 18 December 2023 24 December 2023
52 25 December 2023 31 December 2023