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Calculator Use
Calculate plus or minus days, weeks, months, quarters or years from a date. Enter the date and the number of calendar units to add or subtract. Use this calculator as a days, weeks, months, quarters or years calculator. Calculate time for contracts, shipping, business agreements, etc. Calculate days ago, weeks ago, months ago or time into the future.
Related Calculators: Date Difference, Date ± Days or ± Business Days Calculator
This calculator counts actual days based on the date you submit; a year is 365 days and a leap year is 366 days. There are 52 or 53 full weeks in a year.
Date Formats
For US date formatting style use a forward slash [/], a period [.], or a dash [-]:
- mm/dd/yyyy or mm/dd/yy
- mm.dd.yyyy or mm.dd.yy
- mm-dd-yyyy or mm-dd-yy
For EU or European date formatting style use a forward slash [/], a period [.], or a dash [-]:
- dd/mm/yyyy or dd/mm/yy
- dd.mm.yyyy or dd.mm.yy
- dd-mm-yyyy or dd-mm-yy
For international date formatting style according to ISO 8601 use only a dash [-]:
- yyyy-mm-dd
Today's date is based on Greenwich Mean Time [GMT] or Coordinated Universal Time [UTC].
Numbering
Week numbers are standardized for a year, numbering 1 through 53, with a week running from Monday through Sunday. At year change, a good rule is that if the week contains January 4th it is the 1st week of that year.
For example, compare these to an actual calendar:
- Thursday January 1, 2015 is in the 1st Week of 2015
- Monday December 29, 2014 is in the 1st Week of 2015
- Friday January 1, 2016 is in the 53rd Week of 2015
Cookies
Cookies are used to remember your last settings for date format and calendar units.
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Following is a list of week numbers for 2023. The week numbers 2023are in ISO week date standard where a week starts from Monday and ends on Sunday. 2023 week numbers to show the current week number, number of weeks and the start and end date of the week.
2023 Week Numbers
1 | January 02, 2023 | January 08, 2023 |
2 | January 09, 2023 | January 15, 2023 |
3 | January 16, 2023 | January 22, 2023 |
4 | January 23, 2023 | January 29, 2023 |
5 | January 30, 2023 | February 05, 2023 |
6 | February 06, 2023 | February 12, 2023 |
7 | February 13, 2023 | February 19, 2023 |
8 | February 20, 2023 | February 26, 2023 |
9 | February 27, 2023 | March 05, 2023 |
10 | March 06, 2023 | March 12, 2023 |
11 | March 13, 2023 | March 19, 2023 |
12 | March 20, 2023 | March 26, 2023 |
13 | March 27, 2023 | April 02, 2023 |
14 | April 03, 2023 | April 09, 2023 |
15 | April 10, 2023 | April 16, 2023 |
16 | April 17, 2023 | April 23, 2023 |
17 | April 24, 2023 | April 30, 2023 |
18 | May 01, 2023 | May 07, 2023 |
19 | May 08, 2023 | May 14, 2023 |
20 | May 15, 2023 | May 21, 2023 |
21 | May 22, 2023 | May 28, 2023 |
22 | May 29, 2023 | June 04, 2023 |
23 | June 05, 2023 | June 11, 2023 |
24 | June 12, 2023 | June 18, 2023 |
25 | June 19, 2023 | June 25, 2023 |
26 | June 26, 2023 | July 02, 2023 |
27 | July 03, 2023 | July 09, 2023 |
28 | July 10, 2023 | July 16, 2023 |
29 | July 17, 2023 | July 23, 2023 |
30 | July 24, 2023 | July 30, 2023 |
31 | July 31, 2023 | August 06, 2023 |
32 | August 07, 2023 | August 13, 2023 |
33 | August 14, 2023 | August 20, 2023 |
34 | August 21, 2023 | August 27, 2023 |
35 | August 28, 2023 | September 03, 2023 |
36 | September 04, 2023 | September 10, 2023 |
37 | September 11, 2023 | September 17, 2023 |
38 | September 18, 2023 | September 24, 2023 |
39 | September 25, 2023 | October 01, 2023 |
40 | October 02, 2023 | October 08, 2023 |
41 | October 09, 2023 | October 15, 2023 |
42 | October 16, 2023 | October 22, 2023 |
43 | October 23, 2023 | October 29, 2023 |
44 | October 30, 2023 | November 05, 2023 |
45 | November 06, 2023 | November 12, 2023 |
46 | November 13, 2023 | November 19, 2023 |
47 | November 20, 2023 | November 26, 2023 |
48 | November 27, 2023 | December 03, 2023 |
49 | December 04, 2023 | December 10, 2023 |
50 | December 11, 2023 | December 17, 2023 |
51 | December 18, 2023 | December 24, 2023 |
52 | December 25, 2023 | December 31, 2023 |
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