diff --git a/project_time_in_day/models/project_project.py b/project_time_in_day/models/project_project.py
index c149571d..f0a34cc5 100644
--- a/project_time_in_day/models/project_project.py
+++ b/project_time_in_day/models/project_project.py
@@ -41,6 +41,6 @@ def _convert_to(self, value, conversion):
         uom_day = self.env.ref("uom.product_uom_day")
         uom_hour = self._get_hour_uom()
         if conversion == "days2hours":
-            return uom_day._compute_quantity(value, uom_hour)
+            return uom_day._compute_quantity(value, uom_hour, rounding_method="HALF-UP")
         elif conversion == "hours2days":
-            return uom_hour._compute_quantity(value, uom_day)
+            return uom_hour._compute_quantity(value, uom_day, rounding_method="HALF-UP")