diff --git a/addons/stock/models/stock_move.py b/addons/stock/models/stock_move.py
index c5f8e54d984..a0f774109e1 100644
--- a/addons/stock/models/stock_move.py
+++ b/addons/stock/models/stock_move.py
@@ -288,10 +288,10 @@ class StockMove(models.Model):
                     if propagated_date_field:
                         current_date = datetime.strptime(move.date_expected, DEFAULT_SERVER_DATETIME_FORMAT)
                         new_date = datetime.strptime(vals.get(propagated_date_field), DEFAULT_SERVER_DATETIME_FORMAT)
-                        delta = relativedelta.relativedelta(new_date, current_date)
-                        if abs(delta.days) >= move.company_id.propagation_minimum_delta:
+                        delta_days = (new_date - current_date).total_seconds() / 86400
+                        if abs(delta_days) >= move.company_id.propagation_minimum_delta:
                             old_move_date = datetime.strptime(move.move_dest_id.date_expected, DEFAULT_SERVER_DATETIME_FORMAT)
-                            new_move_date = (old_move_date + relativedelta.relativedelta(days=delta.days or 0)).strftime(DEFAULT_SERVER_DATETIME_FORMAT)
+                            new_move_date = (old_move_date + relativedelta.relativedelta(days=delta_days or 0)).strftime(DEFAULT_SERVER_DATETIME_FORMAT)
                             propagated_changes_dict['date_expected'] = new_move_date
                     #For pushed moves as well as for pulled moves, propagate by recursive call of write().
                     #Note that, for pulled moves we intentionally don't propagate on the procurement.