diff --git a/deployment/horizon/horizon-container-puppet.yaml b/deployment/horizon/horizon-container-puppet.yaml
index f71f3bbe68..36dfbe2a0e 100644
--- a/deployment/horizon/horizon-container-puppet.yaml
+++ b/deployment/horizon/horizon-container-puppet.yaml
@@ -98,6 +98,10 @@ parameters:
     default: ''
     description: Horizon has a global overrides mechanism available to perform customizations
     type: string
+  TimeZone:
+    default: 'UTC'
+    description: The timezone to be set on the overcloud.
+    type: string
   WebSSOEnable:
     default: false
     type: boolean
@@ -179,6 +183,7 @@ outputs:
           horizon::listen_ssl: {get_param: EnableInternalTLS}
           horizon::horizon_ca: {get_param: InternalTLSCAFile}
           horizon::customization_module: {get_param: HorizonCustomizationModule}
+          horizon::timezone: {get_param: TimeZone}
         -
           if:
           - websso_enabled