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+PR_GMTParameters
+================
+
+Returns the time zone offset information that maps the specified
+:ref:`PRExplodedTime` to GMT.
+
+.. note::
+
+   **Note:** Since this function requires GMT as input, its primary use
+   is as "filler" for cases in which you need a do-nothing callback.
+
+
+Syntax
+------
+
+.. code::
+
+   #include <prtime.h>
+
+   PRTimeParameters PR_GMTParameters (
+      const PRExplodedTime *gmt);
+
+
+Parameter
+~~~~~~~~~
+
+``gmt``
+   A pointer to the clock/calendar time whose offsets are to be
+   determined. This time should be specified in GMT.
+
+
+Returns
+~~~~~~~
+
+A time parameters structure that expresses the time zone offsets at the
+specified time.
+
+
+Description
+-----------
+
+This is a frequently-used time parameter callback function. You don't
+normally call it directly; instead, you pass it as a parameter to
+``PR_ExplodeTime()`` or ``PR_NormalizeTime()``.
+
+This is a trivial function; for any input, it returns a
+:ref:`PRTimeParameters` structure with both fields set to zero.