Tool to compute interval difference between two dates. Calculation of the number of days between two dates in order to estimate the length of a period.
Difference between 2 Dates - dCode
Tag(s) : Date and Time
dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!
Difference between 2 Dates
Number of days between two dates calculator
Answers to Questions (FAQ)
How to calculate the number of days between two dates?
Enter the 2 dates (year, month, day) and the dCode calculator will compure the number of days automatically. Calculation is made with the exact number of days between two dates, without counting the day itself.
Example: A child born on the 2000-01-01, is 2 days old on the 2000-01-02 but the calculator will state that there is only 1 day between 1st January and 2nd January.
Algorithmically, dCode associates a date with a numeric value (such as the number of days since January 1st of year 1) and then performs a subtraction between the two date values.
Calculation takes into account the Gregorian Calendar and the Julian one before 1582.
How to understand a difference between two dates?
Depending on the way of thinking, there are multiple answers
Example: Between Tuesday and Wednesday, how many days are there?
Answer 0 : Between the day of Tuesday and the days of Wednesday there are zero day.
Answer 1 : From Tuesday to Wednesday, it takes one day (This is dCode answer).
Answer 2 : A journey beginning Tuesday and finishing Wednesday is 2 days long.
To get an answer in mode 0 or 2, add 1 or remove 1 to the value given by dCode.
How to calculate an age in number of days?
Calculate the difference from the date of birth until today.
What is datediff?
Datediff() is the name of the function that allows to do date difference calculations in most programming languages.
Source code
dCode retains ownership of the "Difference between 2 Dates" source code. Except explicit open source licence (indicated Creative Commons / free), the "Difference between 2 Dates" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or the "Difference between 2 Dates" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and all data download, script, or API access for "Difference between 2 Dates" are not public, same for offline use on PC, tablet, iPhone or Android !
The copy-paste of the page "Difference between 2 Dates" or any of its results, is allowed as long as you cite the online source
Reminder : dCode is free to use.
