Doc: Pacemaker Explained: Document rule:date_expression:timezone

Closes T646 Closes RHBZ#2183466 Signed-off-by: Reid Wahl <[email protected]>
ClusterLabs · Apr 5, 2023 · ad5d8fa · ad5d8fa
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diff --git a/doc/sphinx/Pacemaker_Explained/rules.rst b/doc/sphinx/Pacemaker_Explained/rules.rst
@@ -288,6 +288,17 @@ A ``date_expression`` element may optionally contain a ``date_spec`` or
    |               |   the specification given in the contained ``date_spec``  |
    |               |   element (described below)                               |
    +---------------+-----------------------------------------------------------+
+   | timezone      | .. index::                                                |
+   |               |    pair: timezone; date_expression                        |
+   |               |                                                           |
+   |               | A timezone conforming to the format specified in the      |
+   |               | ``tzset(3)`` man page. The ``date_expression`` is         |
+   |               | evaluated based on the current time in this timezone.     |
+   |               | Defaults to the existing value of the ``TZ`` environment  |
+   |               | variable if set, or to the system timezone otherwise. As  |
+   |               | with ``TZ``, if the value is set but empty or cannot be   |
+   |               | interpreted, UTC is used.                                 |
+   +---------------+-----------------------------------------------------------+
 
 
 .. note:: There is no ``eq``, ``neq``, ``gte``, or ``lte`` operation, since