diff --git a/flow/record/fieldtypes/__init__.py b/flow/record/fieldtypes/__init__.py
index 0160a86..ca7d0af 100644
--- a/flow/record/fieldtypes/__init__.py
+++ b/flow/record/fieldtypes/__init__.py
@@ -283,6 +283,9 @@ def __repr__(self):
         result = str(self)
         return result
 
+    def __hash__(self):
+        return _dt.__hash__(self)
+
 
 class varint(varint_type, FieldType):
     def _pack(self):
diff --git a/tests/test_fieldtypes.py b/tests/test_fieldtypes.py
index a841ed6..f1500b6 100644
--- a/tests/test_fieldtypes.py
+++ b/tests/test_fieldtypes.py
@@ -422,6 +422,10 @@ def test_datetime():
     r = TestRecord(1521731723.123456)
     assert r.ts == datetime.datetime(2018, 3, 22, 15, 15, 23, 123456)
 
+    r = TestRecord("2018-03-22T15:15:23.123456")
+    test = {r.ts: "Success"}
+    assert test[r.ts] == "Success"
+
 
 @pytest.mark.parametrize(
     "value,expected_dt",