diff --git a/README.md b/README.md
index 68c883b0..01cd9952 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,7 @@ Releases
 *Version 6.0.1*
 - Allow NULL values for daily schedule, exception schedule and schedule default
 - Fix scheduling issues when TimeValue sequences are not in chronological order
+- Fix schedule object using incorrect time format to trigger next update
 
 *Version 6.0.0*
 - fix DeviceObjectTest.timeSynchronization test to pass
diff --git a/src/main/java/com/serotonin/bacnet4j/obj/ScheduleObject.java b/src/main/java/com/serotonin/bacnet4j/obj/ScheduleObject.java
index 213ec1ac..53cb5be2 100644
--- a/src/main/java/com/serotonin/bacnet4j/obj/ScheduleObject.java
+++ b/src/main/java/com/serotonin/bacnet4j/obj/ScheduleObject.java
@@ -331,18 +331,7 @@ private void updatePresentValue(final DateTime now) {
                 nextCheck = nextDay(now);
             } else {
                 // Find the schedule entry in effect at this time.
-                TimeValue currentTv = null;
-                int tvIndex = schedule.getCount();
-                for (; tvIndex > 0; tvIndex--) {
-                    final TimeValue tv = schedule.getBase1(tvIndex);
-
-                    if (!tv.getTime().after(now.getTime())) {
-                        // Find time value entry that should be used
-                        if (currentTv == null || tv.getTime().after(currentTv.getTime())) {
-                            currentTv = tv;
-                        }
-                    }
-                }
+                TimeValue currentTv = getCurrentTimeValue(schedule, now);
 
                 // Determine the new present value.
                 // Our interpretation for ANSI/ASHRAE Standard 135-2016, 12.24.4 Present_Value
@@ -355,11 +344,10 @@ private void updatePresentValue(final DateTime now) {
                 else
                     newValue = currentTv.getValue();
 
-                // Determine the next time this method should run.
-                if (tvIndex < schedule.getCount()) {
-                    final TimeValue nextTv = schedule.getBase1(tvIndex + 1);
+                final TimeValue nextTv = getNextTimeValue(currentTv, schedule, now);
+                if (nextTv != null)
                     nextCheck = timeOf(now.getDate(), nextTv);
-                } else
+                else
                     nextCheck = nextDay(now);
             }
         }
@@ -367,11 +355,53 @@ private void updatePresentValue(final DateTime now) {
         writePropertyInternal(PropertyIdentifier.presentValue, newValue);
 
         final java.util.Date nextRuntime = new java.util.Date(nextCheck);
-        presentValueRefersher = getLocalDevice().schedule(() -> updatePresentValue(), nextRuntime.getTime(),
-                TimeUnit.MILLISECONDS);
+        long delay = nextRuntime.getTime() - now.getGC().getTimeInMillis();
+        presentValueRefersher = getLocalDevice().schedule(this::updatePresentValue, delay, TimeUnit.MILLISECONDS);
         LOG.debug("Timer scheduled to run at {}", nextRuntime);
     }
 
+    private static TimeValue getCurrentTimeValue(SequenceOf<TimeValue> schedule, DateTime now) {
+        TimeValue currentTv = null;
+        int tvIndex = schedule.getCount();
+        for (; tvIndex > 0; tvIndex--) {
+            final TimeValue tv = schedule.getBase1(tvIndex);
+            if (!tv.getTime().after(now.getTime())) {
+                // Find time value entry that should be used
+                if (currentTv == null || tv.getTime().after(currentTv.getTime())) {
+                    currentTv = tv;
+                }
+            }
+        }
+        return currentTv;
+    }
+
+    private static TimeValue getNextTimeValue(TimeValue currentTv, SequenceOf<TimeValue> schedule, DateTime now) {
+        TimeValue nextTv = null;
+        if (currentTv != null) nextTv = new TimeValue(currentTv.getTime(), currentTv.getValue());
+
+        int tvIndex = schedule.getCount();
+        for (; tvIndex > 0; tvIndex--) {
+            final TimeValue tv = schedule.getBase1(tvIndex);
+            if (nextTv == null && isBeginningOfDay(now)){
+                nextTv = tv;
+            }
+            if (nextTv != null && currentTv != null) {
+                if (tv.getTime().after(nextTv.getTime()) && tv.getTime().after(currentTv.getTime())) {
+                    nextTv = tv;
+                }
+            } else if (nextTv != null) {
+                if (tv.getTime().before(nextTv.getTime())) {
+                    nextTv = tv;
+                }
+            }
+        }
+
+        if (nextTv != null && currentTv != null && nextTv.getTime().equals(currentTv.getTime())) {
+            return null;
+        }
+        return nextTv;
+    }
+
     private static long nextDay(final DateTime now) {
         final GregorianCalendar gc = now.getGC();
         gc.add(Calendar.DATE, 1);
@@ -382,6 +412,14 @@ private static long nextDay(final DateTime now) {
         return gc.getTimeInMillis();
     }
 
+    private static boolean isBeginningOfDay(final DateTime now) {
+        final GregorianCalendar gc = now.getGC();
+        return gc.get(Calendar.HOUR_OF_DAY) == 0 &&
+                gc.get(Calendar.MINUTE) == 0 &&
+                gc.get(Calendar.SECOND) == 0 &&
+                gc.get(Calendar.MILLISECOND) == 0;
+    }
+
     private static long timeOf(final Date date, final TimeValue tv) {
         final DateTime dt = new DateTime(date, tv.getTime());
         return dt.getGC().getTimeInMillis();
diff --git a/src/test/java/com/serotonin/bacnet4j/obj/ScheduleObjectTest.java b/src/test/java/com/serotonin/bacnet4j/obj/ScheduleObjectTest.java
index 632e23c8..30eb7c95 100644
--- a/src/test/java/com/serotonin/bacnet4j/obj/ScheduleObjectTest.java
+++ b/src/test/java/com/serotonin/bacnet4j/obj/ScheduleObjectTest.java
@@ -142,7 +142,6 @@ private void testTime(final ScheduleObject so, final AnalogValueObject av0, fina
             final java.time.Month month, final int day, final int hour, final int min, final Primitive scheduledValue)
             throws Exception {
         clock.set(2115, month, day, hour, min, 0);
-        so.updatePresentValue();
         Thread.sleep(100); // Let the requests be received.
 
         if (scheduledValue.getClass().equals(Null.class)) {
@@ -415,8 +414,8 @@ private ScheduleObject createScheduleObject(AnalogValueObject av0, AnalogValueOb
                         new TimeValue(new Time(20, 0, 0, 0), new Real(17)))), //
                 new DailySchedule(new SequenceOf<>(new TimeValue(new Time(9, 0, 0, 0), new Real(18)),
                         new TimeValue(new Time(21, 30, 0, 0), new Real(19)))), //
-                new DailySchedule(new SequenceOf<TimeValue>()), //
-                new DailySchedule(new SequenceOf<TimeValue>()));
+                new DailySchedule(new SequenceOf<>()), //
+                new DailySchedule(new SequenceOf<>()));
 
         // Every Friday, November to February, The Wednesday during the 4th week of each month - 8:00 and 22:00 (Priority:10)
         // Every Friday, November to February, The Wednesday during the 4th week of each month - 13:00 and 14:00 (Priority:7)
@@ -441,8 +440,7 @@ private ScheduleObject createScheduleObject(AnalogValueObject av0, AnalogValueOb
                 new DeviceObjectPropertyReference(av1.getId(), PropertyIdentifier.presentValue, null, null) //
         );
 
-        final ScheduleObject so = new ScheduleObject(d1, 0, "sch0", effectivePeriod, weeklySchedule, exceptionSchedule,
+        return new ScheduleObject(d1, 0, "sch0", effectivePeriod, weeklySchedule, exceptionSchedule,
                 scheduleDefault, listOfObjectPropertyReferences, 12, false);
-        return so;
     }
 }