diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarEditionController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarEditionController.java
index f781ca11c..f21ee43ed 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarEditionController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarEditionController.java
@@ -126,12 +126,12 @@ public abstract class BaseCalendarEditionController extends
             prepareParentCombo();
         }
         prepareExceptionTypeCombo();
-        exceptionDurationPicker = addEffortDurationPickerAtDurationRow(comp);
+        exceptionDurationPicker = addEffortDurationPickerAtWorkableTimeRow(comp);
     }
 
-    private EffortDurationPicker addEffortDurationPickerAtDurationRow(
+    private EffortDurationPicker addEffortDurationPickerAtWorkableTimeRow(
             Component comp) {
-        Component container = comp.getFellow("exceptionDayDurationRow");
+        Component container = comp.getFellow("exceptionDayWorkableTimeRow");
         EffortDurationPicker result = new EffortDurationPicker();
         result.setValue(EffortDuration.zero());
         container.appendChild(result);
diff --git a/navalplanner-webapp/src/main/webapp/calendars/_edition.zul b/navalplanner-webapp/src/main/webapp/calendars/_edition.zul
index 2c4b72ccc..cfffca60d 100644
--- a/navalplanner-webapp/src/main/webapp/calendars/_edition.zul
+++ b/navalplanner-webapp/src/main/webapp/calendars/_edition.zul
@@ -106,8 +106,8 @@
                             <label value="${i18n:_('End Date')}" />
                             <datebox id="exceptionEndDate" />
                         </row>
-                        <row id="exceptionDayDurationRow">
-                            <label value="${i18n:_('Duration')}" />
+                        <row id="exceptionDayWorkableTimeRow">
+                            <label value="${i18n:_('Workable Time')}" />
                         </row>
                     </rows>
                     </grid>
@@ -119,7 +119,7 @@
                         <listhead>
                             <listheader label="${i18n:_('Day')}" />
                             <listheader label="${i18n:_('Exception Type')}" />
-                            <listheader label="${i18n:_('Duration')}" />
+                            <listheader label="${i18n:_('Workable Time')}" />
                             <listheader label="${i18n:_('Operations')}" />
                         </listhead>
                     </listbox>
@@ -148,7 +148,7 @@
                         itemRenderer="@{calendarController.editionController.hoursPerDayRenderer}">
                         <listhead>
                             <listheader label="${i18n:_('Day of week')}" />
-                            <listheader label="${i18n:_('Duration')}" />
+                            <listheader label="${i18n:_('Workable Time')}" />
                             <listheader label="${i18n:_('By default')}" />
                         </listhead>
                     </listbox>