Browse free open source Date Calculators and projects for Mac below. Use the toggles on the left to filter open source Date Calculators by OS, license, language, programming language, and project status.

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  • 1
    UltimateCalculator

    UltimateCalculator

    Basic Scientific Calculator

    This software has four major modes- Simple, Scientific, Base & Equation. It also has Unit Converter, Date Calculator & Prime Number Generator.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 2
    A simple command to convert calendar dates to julian dates. Quite useful in timing situations where you need elapsed time between dates. Also useful for astronomy applications.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 3
    Breaks down the research process into pre-defined steps. Users enter a start date and end date for an assignment and the Assignment Calculator will compute the dates s/he needs to complete each step. Written by the University of Minnesota Libraries.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Joda-time based utility Java class that allows calculation related to downtimes. You set a list of downtimes (date-time intervals), and the calculator will give you the ending date-time of a duration, and uptime between two points in time, too.
    Downloads: 0 This Week
    Last Update:
    See Project
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  • 5
    Easter Calculator for Mobile Phone J2ME compliant. You can calculate the date for several years or you can verify if one date is an Easter holiday or not.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6

    ObjectLab Kit

    We MOVED to GITHUB!

    http://github.com/Appendium/objectlabkit A set of modules to handle common financial functions. The first module is Date Calculator which handles holidays and weekends. A set of rules are implemented to deal with days falling on a holiday: Forward, Backward, Modified Forward, Modified Backward New FX Rate Calculators
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Two full-fledged object-oriented classes dealing with dates (class cDate) and spans of time (class cPeriod) written in C++. The datecalc-cpp project is a sub-project of tbvs-hr (https://sourceforge.net/projects/tbvs-hr).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Two full-fledged classes dealing with dates (class cDate) and spans of time class cPeriod) written in PHP. The datecalc project is a sub-project of tbvs (http://sourceforge.net/projects/tbvs).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    pdd

    pdd

    Tiny date, time diff calculator

    There are times you want to check how old you are (in years, months, days) or how long you need to wait for the next flash sale... pdd (python3 date diff) is a small cmdline utility to calculate date and time difference. If no program arguments are specified it shows the current date, time and timezone.
    Downloads: 0 This Week
    Last Update:
    See Project
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