diff --git a/api/src/main/java/org/openmrs/module/appointmentscheduling/api/AppointmentService.java b/api/src/main/java/org/openmrs/module/appointmentscheduling/api/AppointmentService.java
index b34a6811..50ee11c0 100644
--- a/api/src/main/java/org/openmrs/module/appointmentscheduling/api/AppointmentService.java
+++ b/api/src/main/java/org/openmrs/module/appointmentscheduling/api/AppointmentService.java
@@ -785,6 +785,7 @@ Set<Location> getAllLocationDescendants(Location location,
 	 * @param type - The appointment type
 	 * @param status - The appointment status
 	 * @return a list of appointments that satisfy the given constraints
+     * @should sort by associated time slot
 	 */
     @Authorized(AppointmentUtils.PRIV_VIEW_APPOINTMENTS)
 	List<Appointment> getAppointmentsByConstraints(Date fromDate, Date toDate,
@@ -802,6 +803,7 @@ List<Appointment> getAppointmentsByConstraints(Date fromDate, Date toDate,
 	 * @param status - The appointment status
 	 * @param patient - The patient
 	 * @return a list of appointments that satisfy the given constraints
+     * @should sort by associated time slot
 	 */
     @Authorized(AppointmentUtils.PRIV_VIEW_APPOINTMENTS)
 	List<Appointment> getAppointmentsByConstraints(Date fromDate, Date toDate,
@@ -819,6 +821,7 @@ List<Appointment> getAppointmentsByConstraints(Date fromDate, Date toDate,
 	 * @param patient - The patient
 	 * @param appointmentStatuses - The appointment status list
 	 * @return a list of appointments that satisfy the given constraints
+     * @should sort by associated time slot
 	 */
     @Authorized(AppointmentUtils.PRIV_VIEW_APPOINTMENTS)
 	List<Appointment> getAppointmentsByConstraints(Date fromDate, Date toDate,
diff --git a/api/src/main/java/org/openmrs/module/appointmentscheduling/api/db/hibernate/HibernateAppointmentDAO.java b/api/src/main/java/org/openmrs/module/appointmentscheduling/api/db/hibernate/HibernateAppointmentDAO.java
index 8b905243..d297d694 100644
--- a/api/src/main/java/org/openmrs/module/appointmentscheduling/api/db/hibernate/HibernateAppointmentDAO.java
+++ b/api/src/main/java/org/openmrs/module/appointmentscheduling/api/db/hibernate/HibernateAppointmentDAO.java
@@ -111,6 +111,8 @@ public List<Appointment> getAppointmentsByConstraints(Date fromDate,
 				stringQuery += " AND appointment.patient=:patient";
 			}
 
+            stringQuery += " ORDER BY appointment.timeSlot.startDate";
+
 			Query query = super.sessionFactory.getCurrentSession().createQuery(
 					stringQuery);
 
diff --git a/api/src/test/java/org/openmrs/module/appointmentscheduling/api/AppointmentServiceTest.java b/api/src/test/java/org/openmrs/module/appointmentscheduling/api/AppointmentServiceTest.java
index e4662380..ed1e08e7 100644
--- a/api/src/test/java/org/openmrs/module/appointmentscheduling/api/AppointmentServiceTest.java
+++ b/api/src/test/java/org/openmrs/module/appointmentscheduling/api/AppointmentServiceTest.java
@@ -329,9 +329,9 @@ public void shouldGetAllUnvoidedAppointmentsByType_getAppointmentsByConstraints(
 		assertEquals(7, appointments.size());
 
 		type = service.getAppointmentType(3);
-		Appointment specificAppointment = service.getAppointment(4);
+		Appointment specificAppointment = service.getAppointment(5);
 		appointments = service.getAppointmentsByConstraints(null, null, null,
-				null, type, null);
+				null, type, null);   // apt #5 should be first because we are sorting by time slot
 		assertEquals(specificAppointment, appointments.iterator().next());
 		assertEquals(3, appointments.size());
 	}
@@ -402,6 +402,27 @@ public void shouldgetAllUnvoidedAppointmentsByPatientAndStatus_getAppointmentsBy
 		assertEquals(patient, appointments.get(3).getPatient());
 	}
 
+    @Test
+    public void shouldProperlySortAppointmentsByTimeSlotDate_getAppointmentsByConstraints() {
+
+        Patient patient = Context.getPatientService().getPatient(1);
+
+        List<AppointmentStatus> appointmentStatuses = Arrays.asList(
+                AppointmentStatus.SCHEDULED, AppointmentStatus.RESCHEDULED);
+
+        List<Appointment> appointments = service.getAppointmentsByConstraints(
+                null, null, null, null, null, patient, appointmentStatuses);
+
+        assertNotNull(appointments);
+        assertEquals(4, appointments.size());
+
+        // verify they are in order
+        assertEquals(new Integer(6), appointments.get(0).getId());
+        assertEquals(new Integer(1), appointments.get(1).getId());
+        assertEquals(new Integer(4), appointments.get(2).getId());
+        assertEquals(new Integer(7), appointments.get(3).getId());
+    }
+
 	@Test
 	@Verifies(value = "Should get correct appointments", method = "getAppointmentsByStatus(List<AppointmentStatus>)")
 	public void shouldGetCorrectAppointments_getAppointmentsByStatus() {
diff --git a/omod/src/test/java/org/openmrs/module/appointmentscheduling/rest/controller/AppointmentResource1_9ControllerTest.java b/omod/src/test/java/org/openmrs/module/appointmentscheduling/rest/controller/AppointmentResource1_9ControllerTest.java
index 7281b210..334c57cf 100644
--- a/omod/src/test/java/org/openmrs/module/appointmentscheduling/rest/controller/AppointmentResource1_9ControllerTest.java
+++ b/omod/src/test/java/org/openmrs/module/appointmentscheduling/rest/controller/AppointmentResource1_9ControllerTest.java
@@ -240,10 +240,11 @@ public void shouldFetchAppointmentsByPatient() throws Exception {
 		List<Map<String, String>> appointments = (List<Map<String, String>>) deserialize(
 				handle(req)).get("results");
 		Assert.assertEquals(2, appointments.size());
+        Assert.assertEquals("c0c579b0-8e59-401d-8a4a-976a0b183606",
+                appointments.get(0).get("uuid"));
 		Assert.assertEquals("c0c579b0-8e59-401d-8a4a-976a0b183602",
-				appointments.get(0).get("uuid"));
-		Assert.assertEquals("c0c579b0-8e59-401d-8a4a-976a0b183606",
 				appointments.get(1).get("uuid"));
+
 	}
 
 	@Test