diff --git a/Source/Scheduling/Scheduler.Test.cs b/Source/Scheduling/Scheduler.Test.cs
index 1cdf595..e84c967 100644
--- a/Source/Scheduling/Scheduler.Test.cs
+++ b/Source/Scheduling/Scheduler.Test.cs
@@ -47,6 +47,7 @@ namespace Nuclex.Support.Scheduling {
       /// <param name="utcStartTime">Start time in UTC format</param>
       public MockTimeSource(DateTime utcStartTime) {
         this.currentTime = utcStartTime;
+        this.currentTicks = 1000000000;
       }
 
       /// <summary>Waits for an AutoResetEvent to become signalled</summary>
diff --git a/Source/Scheduling/Scheduler.cs b/Source/Scheduling/Scheduler.cs
index be4d038..7726b5b 100644
--- a/Source/Scheduling/Scheduler.cs
+++ b/Source/Scheduling/Scheduler.cs
@@ -128,10 +128,10 @@ namespace Nuclex.Support.Scheduling {
         }
       }
 
-    #endregion // class NotificationComparer
-
     }
 
+    #endregion // class NotificationComparer
+
     /// <summary>Initializes a new scheduler using the default time source</summary>
     public Scheduler() : this(DefaultTimeSource) { }
 
@@ -235,7 +235,7 @@ namespace Nuclex.Support.Scheduling {
       return scheduleNotification(
         new Notification(
           0,
-          delay.Ticks,
+          this.timeSource.Ticks + delay.Ticks,
           DateTime.MinValue,
           callback
         )
@@ -256,7 +256,7 @@ namespace Nuclex.Support.Scheduling {
       return scheduleNotification(
         new Notification(
           0,
-          (long)delayMilliseconds * TicksPerMillisecond,
+          this.timeSource.Ticks + ((long)delayMilliseconds * TicksPerMillisecond),
           DateTime.MinValue,
           callback
         )
@@ -276,7 +276,7 @@ namespace Nuclex.Support.Scheduling {
       return scheduleNotification(
         new Notification(
           interval.Ticks,
-          delay.Ticks,
+          this.timeSource.Ticks + delay.Ticks,
           DateTime.MinValue,
           callback
         )
@@ -302,7 +302,7 @@ namespace Nuclex.Support.Scheduling {
       return scheduleNotification(
         new Notification(
           (long)intervalMilliseconds * TicksPerMillisecond,
-          (long)delayMilliseconds * TicksPerMillisecond,
+          this.timeSource.Ticks + ((long)delayMilliseconds * TicksPerMillisecond),
           DateTime.MinValue,
           callback
         )