diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 <!-- -*- Markdown -*- -->
 
+## 0.8.2.0
+
+- Add TIMESTAMPTZ literal of PostgreSQL.
+
 ## 0.8.1.0
 
 - Add schemaNameMode configuration.
diff --git a/relational-query.cabal b/relational-query.cabal
--- a/relational-query.cabal
+++ b/relational-query.cabal
@@ -1,5 +1,5 @@
 name:                relational-query
-version:             0.8.1.0
+version:             0.8.2.0
 synopsis:            Typeful, Modular, Relational, algebraic query engine
 description:         This package contiains typeful relation structure and
                      relational-algebraic query building DSL which can
diff --git a/src/Database/Relational/Query/Pure.hs b/src/Database/Relational/Query/Pure.hs
--- a/src/Database/Relational/Query/Pure.hs
+++ b/src/Database/Relational/Query/Pure.hs
@@ -29,7 +29,7 @@
 import qualified Data.Text.Encoding as T
 import qualified Data.Text.Lazy as LT
 import Text.Printf (PrintfArg, printf)
-import Data.Time (FormatTime, Day, TimeOfDay, LocalTime, formatTime)
+import Data.Time (FormatTime, Day, TimeOfDay, LocalTime, UTCTime, ZonedTime, formatTime)
 import Data.Time.Locale.Compat (defaultTimeLocale)
 
 import Language.SQL.Keyword (Keyword (..))
@@ -159,6 +159,16 @@
 -- | Constant SQL terms of 'LocalTime'.
 instance ShowConstantTermsSQL LocalTime where
   showConstantTermsSQL' = constantTimeTerms TIMESTAMP "%Y-%m-%d %H:%M:%S"
+
+-- | Constant SQL terms of 'ZonedTime'.
+--   This generates ***NOT STANDARD*** SQL of TIMESTAMPTZ literal.
+instance ShowConstantTermsSQL ZonedTime where
+  showConstantTermsSQL' = constantTimeTerms TIMESTAMPTZ "%Y-%m-%d %H:%M:%S%z"
+
+-- | Constant SQL terms of 'UTCTime'.
+--   This generates ***NOT STANDARD*** SQL of TIMESTAMPTZ literal with UTC timezone.
+instance ShowConstantTermsSQL UTCTime where
+  showConstantTermsSQL' = constantTimeTerms TIMESTAMPTZ "%Y-%m-%d %H:%M:%S%z"
 
 showMaybeTerms :: ShowConstantTermsSQL a => PersistableRecordWidth a -> Maybe a -> [StringSQL]
 showMaybeTerms wa = d  where