diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java
index 876d0423c..4af9f1dab 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java
@@ -450,8 +450,7 @@ public abstract class ResourceAllocation<T extends DayAssignment> extends
 
     final int calculateTotalToDistribute(LocalDate day,
             ResourcesPerDay resourcesPerDay) {
-        Integer workableHours = getWorkHoursPerDay().getCapacityAt(day);
-        return resourcesPerDay.asHoursGivenResourceWorkingDayOf(workableHours);
+        return getWorkHoursPerDay().toHours(day, resourcesPerDay);
     }
 
     private ResourcesPerDay calculateResourcesPerDayFromAssignments() {
@@ -459,16 +458,16 @@ public abstract class ResourceAllocation<T extends DayAssignment> extends
                 .byDay(getAssignments());
         int sumTotalHours = 0;
         int sumWorkableHours = 0;
+        final ResourcesPerDay one = ResourcesPerDay.amount(1);
         for (Entry<LocalDate, List<DayAssignment>> entry : byDay.entrySet()) {
-            sumWorkableHours += getWorkHoursPerDay().getCapacityAt(
-                    entry.getKey());
+            sumWorkableHours += getWorkHoursPerDay().toHours(entry.getKey(),
+                    one);
             sumTotalHours += getAssignedHours(entry.getValue());
         }
         if (sumWorkableHours == 0) {
             return ResourcesPerDay.amount(0);
         }
-        return ResourcesPerDay.calculateFrom(
-                sumTotalHours, sumWorkableHours);
+        return ResourcesPerDay.calculateFrom(sumTotalHours, sumWorkableHours);
     }
 
     private IWorkHours getWorkHoursPerDay() {
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/planner/entities/SpecificResourceAllocationTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/planner/entities/SpecificResourceAllocationTest.java
index c60f6ebfa..b10026c84 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/planner/entities/SpecificResourceAllocationTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/planner/entities/SpecificResourceAllocationTest.java
@@ -65,15 +65,30 @@ public class SpecificResourceAllocationTest {
         this.assignedHours = assignedHours;
     }
 
-    private void givenResourceCalendarAlwaysReturning(int hours) {
+    private void givenResourceCalendarAlwaysReturning(final int hours) {
         this.calendar = createNiceMock(ResourceCalendar.class);
         expect(this.calendar.getCapacityAt(isA(LocalDate.class))).andReturn(
                 hours).anyTimes();
         expect(this.calendar.getWorkableHours(isA(Date.class)))
                 .andReturn(hours).anyTimes();
+        expect(this.calendar.toHours(isA(LocalDate.class),
+                        isA(ResourcesPerDay.class))).andAnswer(
+                toHoursAnswer(hours)).anyTimes();
         replay(this.calendar);
     }
 
+    private IAnswer<Integer> toHoursAnswer(final int hours) {
+        return new IAnswer<Integer>() {
+
+            @Override
+            public Integer answer() throws Throwable {
+                ResourcesPerDay perDay = (ResourcesPerDay) EasyMock
+                        .getCurrentArguments()[1];
+                return perDay.asHoursGivenResourceWorkingDayOf(hours);
+            }
+        };
+    }
+
     private void givenResourceCalendar(final int defaultAnswer, final Map<LocalDate, Integer> answersForDates){
         this.calendar = createNiceMock(ResourceCalendar.class);
         expect(this.calendar.getCapacityAt(isA(LocalDate.class))).andAnswer(new IAnswer<Integer>() {
@@ -87,19 +102,24 @@ public class SpecificResourceAllocationTest {
                 return defaultAnswer;
             }
         }).anyTimes();
-        expect(this.calendar.getWorkableHours(isA(Date.class)))
-        .andAnswer(new IAnswer<Integer>() {
+        expect(
+                this.calendar.toHours(isA(LocalDate.class),
+                        isA(ResourcesPerDay.class))).andAnswer(
+                new IAnswer<Integer>() {
 
-            @Override
-            public Integer answer() throws Throwable {
-                Date date = (Date) EasyMock.getCurrentArguments()[0];
-                LocalDate localDate = new LocalDate(date.getTime());
-                if(answersForDates.containsKey(localDate)){
-                    return answersForDates.get(localDate);
-                }
-                return defaultAnswer;
-            }
-        }).anyTimes();
+                    @Override
+                    public Integer answer() throws Throwable {
+                        LocalDate date = (LocalDate) EasyMock
+                                .getCurrentArguments()[0];
+                        int hours;
+                        if (answersForDates.containsKey(date)) {
+                            hours = answersForDates.get(date);
+                        } else {
+                            hours = defaultAnswer;
+                        }
+                        return toHoursAnswer(hours).answer();
+                    }
+                }).anyTimes();
         replay(this.calendar);
     }