Retrieves the difference in seconds between coordinated universal time (UTC) and local time.
The _get_timezone function retrieves the difference in seconds between UTC and local time as an integer. The default value is 28,800 seconds, for Pacific Standard Time (eight hours behind UTC).
If seconds is NULL, the invalid parameter handler is invoked, as described in Parameter Validation. 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.