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 13 months, 13 weeks, 13 days
Normalized to 1 year, 1 month, 104 days


Result: Thursday, January 23, 2003

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


Alternative result: Friday, January 24, 2003

If the smaller units (days) are added first

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Calendar showing period from September 11, 2001 to January 23, 2003

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–December 2002
November 2001–December 2001: 61 days added
Year 2002: 365 days added
January 2003
23 days added
SunMonTueWedThuFriSat
   1234
567891011
12131415161718
19202122232425
262728293031 

 
= Start date (Sep 11, 2001)  
 
= Final result date (Jan 23, 2003)  
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