diff --git a/modules/worker/back/methods/worker-calendar/absences.js b/modules/worker/back/methods/worker-calendar/absences.js
index fb3cf534e..72e75f227 100644
--- a/modules/worker/back/methods/worker-calendar/absences.js
+++ b/modules/worker/back/methods/worker-calendar/absences.js
@@ -1,5 +1,4 @@
 const UserError = require('vn-loopback/util/user-error');
-const ParameterizedSQL = require('loopback-connector').ParameterizedSQL;
 
 module.exports = Self => {
     Self.remoteMethodCtx('absences', {
@@ -36,7 +35,7 @@ module.exports = Self => {
         }
     });
 
-    Self.absences = async(ctx, workerFk, started, ended) => {
+    Self.absences = async(ctx, workerFk, yearStarted, yearEnded) => {
         const models = Self.app.models;
         const isSubordinate = await models.Worker.isSubordinate(ctx, workerFk);
 
@@ -53,7 +52,7 @@ module.exports = Self => {
             },
             where: {
                 workerFk: workerFk,
-                dated: {between: [started, ended]}
+                dated: {between: [yearStarted, yearEnded]}
             }
         });
 
@@ -66,7 +65,7 @@ module.exports = Self => {
         });
 
         // Get active contracts on current year
-        const year = started.getFullYear();
+        const year = yearStarted.getFullYear();
         const contracts = await models.WorkerLabour.find({
             include: [{
                 relation: 'holidays',
@@ -87,7 +86,7 @@ module.exports = Self => {
                                 relation: 'type'
                             }],
                             where: {
-                                dated: {between: [started, ended]}
+                                dated: {between: [yearStarted, yearEnded]}
                             }
                         }
                     }
@@ -97,7 +96,7 @@ module.exports = Self => {
                 and: [
                     {workerFk: workerFk},
                     {or: [{
-                        ended: {gte: [started]}
+                        ended: {gte: [yearStarted]}
                     }, {ended: null}]}
                 ],
 
@@ -106,13 +105,7 @@ module.exports = Self => {
 
         // Get number of total holidays
         contracts.forEach(contract => {
-            let totalHolidays = contract.holidays().days;
-
-            if (contract.started && contract.ended)
-                totalHolidays = getHolidaysByContract(started, contract);
-
-            calendar.totalHolidays += totalHolidays;
-
+            calendar.totalHolidays += getHolidaysByContract(contract, yearEnded);
 
             let holidayList = contract.workCenter().holidays();
             for (let day of holidayList) {
@@ -126,19 +119,18 @@ module.exports = Self => {
         return [calendar, absences, holidays];
     };
 
-    function getHolidaysByContract(started, contract) {
+    function getHolidaysByContract(contract, endOfYear) {
         const dayTimestamp = 1000 * 60 * 60 * 24;
-        const endedTime = contract.ended.getTime();
+
+        const started = contract.started;
+        const ended = contract.ended;
         const startedTime = started.getTime();
+        const endedTime = ended && ended.getTime() || endOfYear;
+
         const contractDays = Math.floor((endedTime - startedTime) / dayTimestamp);
 
         if (contractDays < 365) {
-            let holidays = contract.holidays().days * (contractDays + 1) / 365;
-            let integerPart = parseInt(holidays);
-            let decimalPart = holidays - integerPart;
-            let decimal = decimalPart >= 0.5 ? 0.5 : 0;
-
-            holidays = integerPart + decimal;
+            let holidays = Math.round(2 * contract.holidays().days * (contractDays + 1) / 365) / 2;
 
             return holidays;
         }
diff --git a/modules/worker/back/methods/worker-calendar/specs/absences.spec.js b/modules/worker/back/methods/worker-calendar/specs/absences.spec.js
index da21a7b05..5627c4303 100644
--- a/modules/worker/back/methods/worker-calendar/specs/absences.spec.js
+++ b/modules/worker/back/methods/worker-calendar/specs/absences.spec.js
@@ -43,7 +43,7 @@ describe('Worker absences()', () => {
         expect(sixthType).toEqual('Holidays');
     });
 
-    it(`should fire the worker 106 on July and see he/she has 13.5`, async() => {
+    it(`should fire the worker 106 on July and see he/she has 14`, async() => {
         const firedWorker = await app.models.WorkerLabour.findById(106);
 
         const endedDate = new Date();
@@ -71,7 +71,7 @@ describe('Worker absences()', () => {
         let calendar = result[0];
         let absences = result[1];
 
-        expect(calendar.totalHolidays).toEqual(13.5);
+        expect(calendar.totalHolidays).toEqual(14);
         expect(calendar.holidaysEnjoyed).toEqual(5);
 
         let firstType = absences[0].absenceType().name;
@@ -81,7 +81,7 @@ describe('Worker absences()', () => {
         expect(sixthType).toEqual('Holidays');
     });
 
-    it(`should fire the worker 106 on March and see he/she has 6.5`, async() => {
+    it(`should fire the worker 106 on March and see he/she has 7`, async() => {
         const firedWorker = await app.models.WorkerLabour.findById(106);
 
         const endedDate = new Date();
@@ -109,7 +109,7 @@ describe('Worker absences()', () => {
         let calendar = result[0];
         let absences = result[1];
 
-        expect(calendar.totalHolidays).toEqual(6.5);
+        expect(calendar.totalHolidays).toEqual(7);
         expect(calendar.holidaysEnjoyed).toEqual(5);
 
         let firstType = absences[0].absenceType().name;
diff --git a/modules/worker/back/models/department.json b/modules/worker/back/models/department.json
index c89a6ac4e..0b978b56c 100644
--- a/modules/worker/back/models/department.json
+++ b/modules/worker/back/models/department.json
@@ -14,12 +14,5 @@
         "name": {
             "type": "String"
         }
-    },
-    "relations": {
-        "father": {
-            "type": "belongsTo",
-            "model": "Department",
-            "foreignKey": "fatherFk"
-        }
     }
 }