diff --git a/lib/embulk/output/bigquery/value_converter_factory.rb b/lib/embulk/output/bigquery/value_converter_factory.rb
index 89fb6e5..0ad1319 100644
--- a/lib/embulk/output/bigquery/value_converter_factory.rb
+++ b/lib/embulk/output/bigquery/value_converter_factory.rb
@@ -285,6 +285,11 @@ def timestamp_converter
               next nil if val.nil?
               val.localtime(zone_offset).strftime("%Y-%m-%d %H:%M:%S.%6N")
             }
+          when 'TIME'
+            Proc.new {|val|
+              next nil if val.nil?
+              val.localtime(zone_offset).strftime("%H:%M:%S.%6N")
+            }
           else
             raise NotSupportedType, "cannot take column type #{type} for timestamp column"
           end
diff --git a/test/test_value_converter_factory.rb b/test/test_value_converter_factory.rb
index e84dae4..d8443bc 100644
--- a/test/test_value_converter_factory.rb
+++ b/test/test_value_converter_factory.rb
@@ -263,16 +263,16 @@ def test_datetime
         end
 
         def test_time
-          converter = ValueConverterFactory.new(
-            SCHEMA_TYPE, 'TIME',
-            timestamp_format: '%H:%M:%S'
-          ).create_converter
+          converter = ValueConverterFactory.new(SCHEMA_TYPE, 'TIME').create_converter
           assert_equal nil, converter.call(nil)
           assert_equal "00:03:22.000000", converter.call("00:03:22")
           assert_equal "15:22:00.000000", converter.call("3:22 PM")
           assert_equal "03:22:00.000000", converter.call("3:22 AM")
-          assert_equal "15:22:00.000000", converter.call("15:22")
-          assert_equal "10:00:00.000000", converter.call("2024-07-24 10:00")
+
+          # Users must care of BQ datetime format by themselves with no timestamp_format
+          converter = ValueConverterFactory.new(SCHEMA_TYPE, 'TIME').create_converter
+          assert_equal nil, converter.call(nil)
+          assert_equal "00:00:00.000000", converter.call("2016-02-26 00:00:00")
         end
 
         def test_record
@@ -363,6 +363,24 @@ def test_datetime
           assert_raise { converter.call('foo') }
         end
 
+        def test_time
+          converter = ValueConverterFactory.new(SCHEMA_TYPE, 'TIME').create_converter
+          assert_equal nil, converter.call(nil)
+          timestamp = Time.parse("2016-02-26 00:00:00.500000 +00:00")
+          expected = "00:00:00.500000"
+          assert_equal expected, converter.call(timestamp)
+
+          converter = ValueConverterFactory.new(
+            SCHEMA_TYPE, 'TIME', timezone: 'Asia/Tokyo'
+          ).create_converter
+          assert_equal nil, converter.call(nil)
+          timestamp = Time.parse("2016-02-25 15:00:00.500000 +00:00")
+          expected = "00:00:00.500000"
+          assert_equal expected, converter.call(timestamp)
+
+          assert_raise { converter.call('foo') }
+        end
+
         def test_record
           assert_raise { ValueConverterFactory.new(SCHEMA_TYPE, 'RECORD').create_converter }
         end