diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb14632a6..b0b4e28cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
  - #3093, Nested empty embeds no longer show empty values and are correctly omitted - @laurenceisla
  - #3644, Make --dump-schema work with in-database pgrst.db_schemas setting - @wolfgangwalther
+ - #3644, Show number of timezones in schema cache load report - @wolfgangwalther
 
 ## [12.2.1] - 2024-06-27
 
diff --git a/src/PostgREST/SchemaCache.hs b/src/PostgREST/SchemaCache.hs
index b6dca5ba1..3ce106534 100644
--- a/src/PostgREST/SchemaCache.hs
+++ b/src/PostgREST/SchemaCache.hs
@@ -95,13 +95,14 @@ instance JSON.ToJSON SchemaCache where
     ]
 
 showSummary :: SchemaCache -> Text
-showSummary (SchemaCache tbls rels routs reps mediaHdlrs _) =
+showSummary (SchemaCache tbls rels routs reps mediaHdlrs tzs) =
   T.intercalate ", "
   [ show (HM.size tbls)       <> " Relations"
   , show (HM.size rels)       <> " Relationships"
   , show (HM.size routs)      <> " Functions"
   , show (HM.size reps)       <> " Domain Representations"
   , show (HM.size mediaHdlrs) <> " Media Type Handlers"
+  , show (S.size tzs)         <> " Timezones"
   ]
 
 -- | A view foreign key or primary key dependency detected on its source table