diff --git a/renumics/spotlight/dtypes/conversion.py b/renumics/spotlight/dtypes/conversion.py
index c5b7cc12..6e53dca2 100644
--- a/renumics/spotlight/dtypes/conversion.py
+++ b/renumics/spotlight/dtypes/conversion.py
@@ -245,7 +245,7 @@ def _(value: Union[str, np.str_], _: dtypes.DType) -> Optional[datetime.datetime
 
 @convert("datetime")
 def _(value: np.datetime64, _: dtypes.DType) -> Optional[datetime.datetime]:
-    return value.tolist()
+    return value.astype("datetime64[us]").tolist()
 
 
 @convert("Category")