Date calculator: Add to or subtract from a date

This service enables you to add or subtract days, months and years to a date to calculate a past or future date.

Design changes: What is new and why?

Start Date

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Today

From Tuesday, September 11, 2001
Added 49 months, 49 weeks, 49 days
Normalized to 4 years, 1 month, 392 days


Result: Tuesday, November 7, 2006

If the larger units (months/years) are added before the smaller units (days).


Alternative result: Wednesday, November 8, 2006

If the smaller units (days) are added first

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Calendar showing period from September 11, 2001 to November 7, 2006

September 2001
19 days added
SunMonTueWedThuFriSat
      1
2345678
9101112131415
16171819202122
23242526272829
30      
October 2001
31 days added
SunMonTueWedThuFriSat
 123456
78910111213
14151617181920
21222324252627
28293031   
November 2001–October 2006
November 2001–December 2001: 61 days added
Year 2002: 365 days added
Year 2003: 365 days added
Year 2004: 366 days added
Year 2005: 365 days added
January 2006–October 2006: 304 days added
November 2006
7 days added
SunMonTueWedThuFriSat
   1234
567891011
12131415161718
19202122232425
2627282930  

 
= Start date (Sep 11, 2001)  
 
= Final result date (Nov 7, 2006)  
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