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Calculation with Dates

Tool to make calculation with dates. Date can be computed with additions or subtractions of days, weeks, months or years with a given date.

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Calculation with Dates -

Tag(s) : Date and Time

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Calculation with Dates

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Addition of days to a given date calculator

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Subtraction of days to a given date calculator

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Tool to make calculation with dates. Date can be computed with additions or subtractions of days, weeks, months or years with a given date.

Answers to Questions

How to add/remove days to a date?

dCode locate the day, month and year in a reference calendar. He added or subtracted the number of days required for the initial date to calculate the new date.

Example: To determine when somebody had/will have 10,000 days, add 10,000 days to the date of birth.

Calculation uses the Gregorian Calendar and the Julian one before 1582.

Remainder : 1 week = 7 days, 1 month = 30.4 days (average value), 1 trimester = 91.3 days (average value), 1 year = 365.24 days (average value)

How to calculate your age in days?

To know how many days somebody have, use the difference between two dates page and enter the birth date and today as the reference date for subtraction.

How to add days of months in Excel

To add days in Excel, add an integer to a date.

Example: 2010/01/01 + 1 = 2010/01/02

To add months, use the function EDATE

Example: EDATE("01/01/2010",1) = 2010/02/01

Source code

dCode retains ownership of the online 'Calculation with Dates' tool source code. Except explicit open source licence (indicated CC / Creative Commons / free), any algorithm, applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (PHP, Java, C#, Python, Javascript, Matlab, etc.) no data, script or API access will be for free, same for Calculation with Dates download for offline use on PC, tablet, iPhone or Android !

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Thanks to your feedback and relevant comments, dCode has developped the best Calculation with Dates tool, so feel free to write! Thank you !


Source : https://www.dcode.fr/date-calculation
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