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Retrieves the daylight saving time offset in hours.
The offset in hours of daylight saving time.
The _get_daylight function retrieves the number of hours in daylight saving time as an integer. If daylight saving time is in effect, the default offset is one hour (although a few regions do observe a two-hour offset).
If hours is NULL, the invalid parameter handler is invoked as described in . If execution is allowed to continue, this function sets errno to EINVAL and returns EINVAL.
Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.