What's the current Week Number?

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

 
Current Week Number : 20

Week 20 start date is Monday, 09 May 2022 and end date is Sunday, 15 May 2022 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 27 December 2021 02 January 2022
02 03 January 2022 09 January 2022
03 10 January 2022 16 January 2022
04 17 January 2022 23 January 2022
05 24 January 2022 30 January 2022
06 31 January 2022 06 February 2022
07 07 February 2022 13 February 2022
08 14 February 2022 20 February 2022
09 21 February 2022 27 February 2022
10 28 February 2022 06 March 2022
11 07 March 2022 13 March 2022
12 14 March 2022 20 March 2022
13 21 March 2022 27 March 2022
14 28 March 2022 03 April 2022
15 04 April 2022 10 April 2022
16 11 April 2022 17 April 2022
17 18 April 2022 24 April 2022
18 25 April 2022 01 May 2022
19 02 May 2022 08 May 2022
20 09 May 2022 15 May 2022
21 16 May 2022 22 May 2022
22 23 May 2022 29 May 2022
23 30 May 2022 05 June 2022
24 06 June 2022 12 June 2022
25 13 June 2022 19 June 2022
26 20 June 2022 26 June 2022
27 27 June 2022 03 July 2022
28 04 July 2022 10 July 2022
29 11 July 2022 17 July 2022
30 18 July 2022 24 July 2022
31 25 July 2022 31 July 2022
32 01 August 2022 07 August 2022
33 08 August 2022 14 August 2022
34 15 August 2022 21 August 2022
35 22 August 2022 28 August 2022
36 29 August 2022 04 September 2022
37 05 September 2022 11 September 2022
38 12 September 2022 18 September 2022
39 19 September 2022 25 September 2022
40 26 September 2022 02 October 2022
41 03 October 2022 09 October 2022
42 10 October 2022 16 October 2022
43 17 October 2022 23 October 2022
44 24 October 2022 30 October 2022
45 31 October 2022 06 November 2022
46 07 November 2022 13 November 2022
47 14 November 2022 20 November 2022
48 21 November 2022 27 November 2022
49 28 November 2022 04 December 2022
50 05 December 2022 11 December 2022
51 12 December 2022 18 December 2022
52 19 December 2022 25 December 2022
53 26 December 2022 01 January 2023