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    Date & Time

    A Time Zone API supplement

    Microsoft has an extremely limited set of Time Zone functions. This API will allow the full use of Time Zones in your Windows App.

    QPerformanceTimer

    "Profile" a block of C++ code with just one include file and two variable definitions.

    A Timer Application Based on IReferenceClock

    Learn about the IReferenceClock interface, which can be used to program a timer with high resolution.

    Determining Day of Week

    [Update] The issues raised by CodeGuru readers have been addressed. The article has been revised and new source code has been created.

    Extended Time Format Functions (with Milliseconds)

    Very useful set of time formatting routines that can easily be inserted into your C++ code

    Equinox and Solstice Calculation

    Calculate the date and time of equinoxes and solstices in a given year (not earlier than 4713 BC). Includes public domain time routine that converts Julian Day numbers to Gregorian and Julian calendar dates.

    Weekly Hours Selector

    Weekly Hours Selector