diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# hpqtypes-extras-1.16.4.3 (2023-06-12)
+* Synchronize timezone of a session with timezone of a database after changing
+  the latter.
+
 # hpqtypes-extras-1.16.4.2 (2023-05-23)
 * Make order of tables during schema creation irrelevant.
 
diff --git a/hpqtypes-extras.cabal b/hpqtypes-extras.cabal
--- a/hpqtypes-extras.cabal
+++ b/hpqtypes-extras.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.2
 name:                hpqtypes-extras
-version:             1.16.4.2
+version:             1.16.4.3
 synopsis:            Extra utilities for hpqtypes library
 description:         The following extras for hpqtypes library:
                      .
diff --git a/src/Database/PostgreSQL/PQTypes/Checks.hs b/src/Database/PostgreSQL/PQTypes/Checks.hs
--- a/src/Database/PostgreSQL/PQTypes/Checks.hs
+++ b/src/Database/PostgreSQL/PQTypes/Checks.hs
@@ -157,6 +157,8 @@
     logInfo_ $ "Setting '" <> unRawSQL dbname
       <> "' database to return timestamps in UTC"
     runQuery_ $ "ALTER DATABASE" <+> dbname <+> "SET TIMEZONE = 'UTC'"
+    -- Setting the database timezone doesn't change the session timezone.
+    runSQL_ $ "SET timezone = 'UTC'"
 
 -- | Get the names of all user-defined tables that actually exist in
 -- the DB.