diff --git a/aries_cloudagent/ledger/indy.py b/aries_cloudagent/ledger/indy.py
index 34e216339a..e21178f01f 100644
--- a/aries_cloudagent/ledger/indy.py
+++ b/aries_cloudagent/ledger/indy.py
@@ -981,7 +981,11 @@ def taa_rough_timestamp(self) -> int:
 
         Anything more accurate is a privacy concern.
         """
-        return int(datetime.combine(date.today(), datetime.min.time()).timestamp())
+        return int(
+            datetime.combine(
+                date.today(), datetime.min.time(), datetime.timezone.utc
+            ).timestamp()
+        )
 
     async def accept_txn_author_agreement(
         self, taa_record: dict, mechanism: str, accept_time: int = None
diff --git a/aries_cloudagent/ledger/indy_vdr.py b/aries_cloudagent/ledger/indy_vdr.py
index c6a3da3b1b..1ac34a3c99 100644
--- a/aries_cloudagent/ledger/indy_vdr.py
+++ b/aries_cloudagent/ledger/indy_vdr.py
@@ -921,7 +921,11 @@ def taa_rough_timestamp(self) -> int:
 
         Anything more accurate is a privacy concern.
         """
-        return int(datetime.combine(date.today(), datetime.min.time()).timestamp())
+        return int(
+            datetime.combine(
+                date.today(), datetime.min.time(), datetime.timezone.utc
+            ).timestamp()
+        )
 
     async def accept_txn_author_agreement(
         self, taa_record: dict, mechanism: str, accept_time: int = None