diff --git a/src/test/java/walkingkooka/spreadsheet/format/provider/SpreadsheetFormattersSpreadsheetFormatterProviderTest.java b/src/test/java/walkingkooka/spreadsheet/format/provider/SpreadsheetFormattersSpreadsheetFormatterProviderTest.java
index b79ccb5ff..d36385adc 100644
--- a/src/test/java/walkingkooka/spreadsheet/format/provider/SpreadsheetFormattersSpreadsheetFormatterProviderTest.java
+++ b/src/test/java/walkingkooka/spreadsheet/format/provider/SpreadsheetFormattersSpreadsheetFormatterProviderTest.java
@@ -543,6 +543,18 @@ public void testSpreadsheetFormatterSelectorWithFullDate() {
                 .formatter()
         );
     }
+
+    // full-date-time...................................................................................................
+
+    @Test
+    public void testSpreadsheetFormatterSelectorWithFullDateTime() {
+        this.spreadsheetFormatterAndCheck(
+            SpreadsheetFormatterName.FULL_DATE_TIME.text(),
+            PROVIDER_CONTEXT,
+            SpreadsheetPattern.parseDateTimeParsePattern("dddd, d mmmm yyyy \\a\\t h:mm:ss AM/PM")
+                .formatter()
+        );
+    }
     
     // general..........................................................................................................