diff --git a/src/dve/metadata_parser/domain_types.py b/src/dve/metadata_parser/domain_types.py
index 545429f..6e102ea 100644
--- a/src/dve/metadata_parser/domain_types.py
+++ b/src/dve/metadata_parser/domain_types.py
@@ -519,7 +519,8 @@ def validate(cls, value: Union[dt.time, dt.datetime, str]) -> dt.time | None:
             raise ValueError("Provided time has timezone, but this is forbidden for this field")
         if cls.TIMEZONE_TREATMENT == "require" and not new_time.tzinfo:
             raise ValueError("Provided time missing timezone, but this is required for this field")
-
+        if isinstance(value, str) and cls.TIME_FORMAT and value != str(new_time):
+            raise ValueError("Provided time is not matching expected time format supplied.")
         return new_time
 
     @classmethod
diff --git a/tests/test_model_generation/test_domain_types.py b/tests/test_model_generation/test_domain_types.py
index a494494..56cf3f9 100644
--- a/tests/test_model_generation/test_domain_types.py
+++ b/tests/test_model_generation/test_domain_types.py
@@ -335,9 +335,6 @@ def test_reportingperiod_raises(field, value):
         ["23:00:00Z", None, "require", dt.time(23, 0, 0, tzinfo=UTC)],
         ["12:00:00Zam", None, "permit", dt.time(0, 0, 0, tzinfo=UTC)],
         ["12:00:00pm", None, "forbid", dt.time(12, 0, 0)],
-        ["1970-01-01", "%Y-%m-%d", "forbid", dt.time(0, 0)],
-        # not great that it effectively returns incorrect time object here. However, this would be
-        # down to user error in setting up the dischema.
         [dt.datetime(2025, 12, 1, 13, 0, 5), "%H:%M:%S", "forbid", dt.time(13, 0, 5)],
         [dt.datetime(2025, 12, 1, 13, 0, 5, tzinfo=UTC), "%H:%M:%S", "require", dt.time(13, 0, 5, tzinfo=UTC)],
         [dt.time(13, 0, 0), "%H:%M:%S", "forbid", dt.time(13, 0, 0)],
@@ -364,6 +361,9 @@ def test_formattedtime(
         ["23:00:00", "%I:%M:%S", "permit",],
         ["23:00:00", "%H:%M:%S", "require",],
         ["23:00:00Z", "%I:%M:%S", "forbid",],
+        ["2:10:13", "%H:%M:%S", "forbid",],
+        ["20:0:13", "%H:%M:%S", "forbid",],
+        ["20:10:1", "%H:%M:%S", "forbid",],
         [dt.datetime(2025, 12, 1, 13, 0, 5, tzinfo=UTC), "%H:%M:%S", "forbid",],
         [dt.time(13, 0, 5, tzinfo=UTC), "%H:%M:%S", "forbid",],
         ["12:00", "%H:%M:%S", "forbid",],