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Last modified: July 23, 2011

Applies to: Outlook

Holds an unsigned 64-bit date and time value for a file. This value represents the number of 100-nanosecond units since the start of January 1, 1601.

Header file:


typedef struct _FILETIME
  DWORD dwLowDateTime;
  DWORD dwHighDateTime;


Low-order 32 bits of the file time value.


High-order 32 bits of the file time value.

A property of type PT_SYSTIME has a FILETIME structure for its value. Such a property has a FILETIME data type for the Value member in its definition in an SPropValue structure.

The definition of the FILETIME structure is in the Win32 Programmer's Reference and in the MAPI header file Mapidefs.h. MAPI defines the structure conditionally to make sure that it is defined when the Win32 definition is unavailable.

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