fix calculation

src/calculation_time_constrains/service.py

@@ -1047,7 +1047,7 @@ class OptimumCostModel:
         reliability_values = np.array(reliability_values)
 
         # Calculate days from last OH
-        days_from_last_oh = np.array([(date - self.last_oh_date).days * 24 for date in dates])
+        days_from_last_oh = np.array([(date - self.last_oh_date).days for date in dates])
         date_point = np.array([i+1 for i in range(len(dates))])
 
         # Calculate failure probabilities
@@ -1084,7 +1084,7 @@ class OptimumCostModel:
         for i in range(len(dates)):
             results.append({
                 'date': dates[i],
-                'days_from_last_oh': days_from_last_oh[i] / 24,
+                'days_from_last_oh': days_from_last_oh[i],
                 'failure_rate': reliability_values[i],
                 'failure_probability': failure_probs[i],
                 'number_of_failure': round(reliability_values[i] * days_from_last_oh[i]),