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[The feature associated with this page, Multimedia Timers, is a legacy feature. It has been superseded by Multimedia Class Scheduler Service. Multimedia Class Scheduler Service has been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Multimedia Class Scheduler Service instead of Multimedia Timers, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
Typically, before an application begins using the multimedia timer services, it retrieves the current system time. The system time is the time, in milliseconds, since the Microsoft Windows operating system was started. You can use the timeGetTime or timeGetSystemTime function to retrieve the system time. These two functions are very similar: timeGetTime returns the system time, and timeGetSystemTime fills an MMTIME structure with the system time.