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 Sunday, January 20, 1963
Added 7 months, 59 weeks, 777 days
Normalized to 7 months, 1190 days


Result: Tuesday, November 22, 1966

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


Alternative result: Thursday, November 24, 1966

If the smaller units (days) are added first

◀ Make adjustmentStart Again ▶

Calendar showing period from January 20, 1963 to November 22, 1966

January 1963
11 days added
SunMonTueWedThuFriSat
  12345
6789101112
13141516171819
20212223242526
2728293031  
February 1963
28 days added
SunMonTueWedThuFriSat
     12
3456789
10111213141516
17181920212223
2425262728  
March 1963–October 1966
March 1963–December 1963: 306 days added
Year 1964: 366 days added
Year 1965: 365 days added
January 1966–October 1966: 304 days added
November 1966
22 days added
SunMonTueWedThuFriSat
  12345
6789101112
13141516171819
20212223242526
27282930   

 
= Start date (Jan 20, 1963)  
 
= Final result date (Nov 22, 1966)  
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