diff --git a/src/icartt/dataset.py b/src/icartt/dataset.py
index b9e105984a16790eba667c48d229d1a000fc8d24..65e109922c512eec9f24ba140209ff3c9fd46d55 100644
--- a/src/icartt/dataset.py
+++ b/src/icartt/dataset.py
@@ -894,6 +894,9 @@ class Dataset:
         self.PIAffiliation = "Musterinstitut"
         self.dataSourceDescription = "Musterdatenprodukt"
         self.missionName = "MUSTEREX"
+
+        # TODO: not 100%  sure if this is relevant here, but those dates should refer to UTC
+        # - if you leave the datetime objects naive (no tzinfo set), they represent local time.
         self.dateOfCollection = datetime.datetime.today()
         self.dateOfRevision = datetime.datetime.today()
         self.dataIntervalCode = [0.0]