diff --git a/pkg/tsdb/grafana-postgresql-datasource/testdata/table/timestamp_convert_real.golden.jsonc b/pkg/tsdb/grafana-postgresql-datasource/testdata/table/timestamp_convert_real.golden.jsonc
index 6548ddecde9..af23cf8b5bd 100644
--- a/pkg/tsdb/grafana-postgresql-datasource/testdata/table/timestamp_convert_real.golden.jsonc
+++ b/pkg/tsdb/grafana-postgresql-datasource/testdata/table/timestamp_convert_real.golden.jsonc
@@ -14,9 +14,9 @@
 //  | Labels:                              | Labels:                       | Labels:          | Labels:                           |
 //  | Type: []*time.Time                   | Type: []*time.Time            | Type: []*float64 | Type: []*time.Time                |
 //  +--------------------------------------+-------------------------------+------------------+-----------------------------------+
-//  | 2023-12-21 12:21:27 +0000 UTC        | 2023-12-21 12:21:40 +0000 UTC | 1.7031613e+09    | 2023-12-21 12:21:52 +0000 UTC     |
-//  | 2023-12-21 12:21:27.724 +0000 UTC    | 2023-12-21 12:20:00 +0000 UTC | 1.7031612e+12    | 2023-12-21 12:21:52.522 +0000 UTC |
-//  | 2023-12-21 12:21:27.724919 +0000 UTC | 2023-12-21 12:20:00 +0000 UTC | 1.7031612e+18    | 2023-12-21 12:21:52.522 +0000 UTC |
+//  | 2023-12-21 12:22:24 +0000 UTC        | 2023-12-21 12:21:40 +0000 UTC | 1.7031613e+09    | 2023-12-21 12:22:52 +0000 UTC     |
+//  | 2023-12-21 12:20:33.408 +0000 UTC    | 2023-12-21 12:20:00 +0000 UTC | 1.7031612e+12    | 2023-12-21 12:21:52.522 +0000 UTC |
+//  | 2023-12-21 12:20:41.050022 +0000 UTC | 2023-12-21 12:20:00 +0000 UTC | 1.7031612e+18    | 2023-12-21 12:21:52.522 +0000 UTC |
 //  | null                                 | null                          | null             | null                              |
 //  +--------------------------------------+-------------------------------+------------------+-----------------------------------+
 //  
@@ -72,9 +72,9 @@
       "data": {
         "values": [
           [
-            1703161287000,
-            1703161287724,
-            1703161287724,
+            1703161344000,
+            1703161233408,
+            1703161241050,
             null
           ],
           [
@@ -90,7 +90,7 @@
             null
           ],
           [
-            1703161312000,
+            1703161372000,
             1703161312522,
             1703161312522,
             null
@@ -100,7 +100,7 @@
           [
             0,
             0,
-            919000,
+            22000,
             0
           ],
           null,
diff --git a/pkg/tsdb/grafana-postgresql-datasource/testdata/table/timestamp_convert_real.sql b/pkg/tsdb/grafana-postgresql-datasource/testdata/table/timestamp_convert_real.sql
index ef7e072bb67..b0d00ce9773 100644
--- a/pkg/tsdb/grafana-postgresql-datasource/testdata/table/timestamp_convert_real.sql
+++ b/pkg/tsdb/grafana-postgresql-datasource/testdata/table/timestamp_convert_real.sql
@@ -8,7 +8,7 @@ CREATE TEMPORARY TABLE tbl (
 );
 
 INSERT INTO tbl (reallyt, "time", n, timeend) VALUES
-('2023-12-21T12:21:27 UTC', 1703161287, 1703161287, 1703161312),
-('2023-12-21T12:21:27.724 UTC', 1703161287724, 1703161287724, 1703161312522),
-('2023-12-21T12:21:27.724919 UTC', 1703161287724919000, 1703161287724919000, 1703161312522186000),
+('2023-12-21T12:22:24', 1703161344, 1703161344, 1703161372),
+('2023-12-21T12:20:33.408', 1703161233408, 1703161233408, 1703161312522),
+('2023-12-21T12:20:41.050022', 1703161241050021888, 1703161241050021888, 1703161312522186000),
 (NULL, NULL, NULL, NULL);
\ No newline at end of file