-param:gmt=`yes` vtype:[optional boolean]::
- Set the time zone of the param:begin and param:end parameters
- to GMT instead of the local time zone.
+param:gmt='VAL' vtype:[optional boolean]::
+ If 'VAL' is true, then set the time zone of the param:begin and
+ param:end parameters to GMT instead of the local time zone.
++
+Default: false.