diff --git a/digi/src/main/java/org/hps/digi/SvtDigitizationWithPulserDataMergingReadoutDriver.java b/digi/src/main/java/org/hps/digi/SvtDigitizationWithPulserDataMergingReadoutDriver.java
index a6e3c572a..41a69282e 100755
--- a/digi/src/main/java/org/hps/digi/SvtDigitizationWithPulserDataMergingReadoutDriver.java
+++ b/digi/src/main/java/org/hps/digi/SvtDigitizationWithPulserDataMergingReadoutDriver.java
@@ -58,6 +58,7 @@ public class SvtDigitizationWithPulserDataMergingReadoutDriver extends ReadoutDr
     private double readoutOffset = 0.0;
     private double readoutLatency = 280.0;
     private double pileupCutoff = 300.0;
+    private double simHitTimeOffset=0.0;
     private String readout = "TrackerHits";
     private double timeOffset = 30.0;
     private boolean noPileup = false;
@@ -194,6 +195,16 @@ public void setDropBadChannels(boolean dropBadChannels) {
     public void setReadoutLatency(double readoutLatency) {
         this.readoutLatency = readoutLatency;
     }
+
+    
+    /**
+     * Set the time offset for the SimTrackerHit
+     * inside the APV25 window
+     * @param simHitTimeOffset - The offset to use
+     */
+    public void setSimHitTimeOffset(double simHitTimeOffset) {
+        this.simHitTimeOffset = simHitTimeOffset;
+    }
     
     /**
      * Sets whether to use manually defined timing conditions, or if
@@ -473,7 +484,7 @@ private List<StripHit> doSiSimulation() {
                         // SimTrackerHit.
                         double time = 0.0;
                         for(SimTrackerHit hit : simHits) {
-                            time += hit.getTime();
+                            time += hit.getTime()+simHitTimeOffset;
                         }
                         time /= simHits.size();
                         time += ReadoutDataManager.getCurrentTime();
@@ -628,6 +639,7 @@ protected Collection<TriggeredLCIOData<?>> getOnTriggerData(double triggerTime)
         List<SimTrackerHit> truthHits = new ArrayList<SimTrackerHit>();
         List<LCRelation> trueHitRelations = new ArrayList<LCRelation>();      
         // Calculate time of first sample
+
         double firstSample = Math.floor(((triggerTime + 256) - readoutLatency - readoutOffset) / HPSSVTConstants.SAMPLING_INTERVAL)
                 * HPSSVTConstants.SAMPLING_INTERVAL + readoutOffset;
         
diff --git a/ecal-recon/src/main/java/org/hps/recon/ecal/EcalTimeCorrectionDriver.java b/ecal-recon/src/main/java/org/hps/recon/ecal/EcalTimeCorrectionDriver.java
index bc4b147e0..25f44eed6 100644
--- a/ecal-recon/src/main/java/org/hps/recon/ecal/EcalTimeCorrectionDriver.java
+++ b/ecal-recon/src/main/java/org/hps/recon/ecal/EcalTimeCorrectionDriver.java
@@ -30,6 +30,7 @@ public class EcalTimeCorrectionDriver extends Driver {
     private boolean mode3 = false;
     private boolean useFit = true;
     private boolean useTimeWalkCondition = true;
+    private double additionalShift = 0.0;
 
     private EcalConditions ecalConditions = null;
 
@@ -41,6 +42,10 @@ public void setUseFit(boolean useFit) {
         this.useFit = useFit;
     }
 
+    public void setAdditionalShift(double additionalShift) {
+        this.additionalShift = additionalShift;
+    }
+
     public void setUseTimeWalkCondition(boolean useTimeWalkCondition) {
         this.useTimeWalkCondition = useTimeWalkCondition;
     }
@@ -110,6 +115,7 @@ public void process(EventHeader event) {
 
             // Apply overall time offset
             time -= findChannel(hit.getCellID()).getTimeShift().getTimeShift();
+    	    time += additionalShift;
 
             newHits.add(CalorimeterHitUtilities.create(energy, time, hit.getCellID()));
         }
diff --git a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigSinglesWithPulserDataMerging.lcsim b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigSinglesWithPulserDataMerging.lcsim
index c5942bcf4..e43a7883a 100644
--- a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigSinglesWithPulserDataMerging.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigSinglesWithPulserDataMerging.lcsim
@@ -427,6 +427,7 @@
           <pulserDataCollectionName>PulserDataSVTRawTrackerHits</pulserDataCollectionName>
             <enablePileupCut>false</enablePileupCut>
             <useTimingConditions>true</useTimingConditions>
+	    <simHitTimeOffset>-10</simHitTimeOffset>
             <addNoise>true</addNoise>
         </driver>
 
diff --git a/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2021MCRecon_KF_WithSpacing_pass3.lcsim b/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2021MCRecon_KF_WithSpacing_pass3.lcsim
index 137a1d612..d079056db 100644
--- a/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2021MCRecon_KF_WithSpacing_pass3.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2021MCRecon_KF_WithSpacing_pass3.lcsim
@@ -32,7 +32,9 @@
         </driver>
         <!-- Ecal reconstruction drivers -->
         <driver name="EcalRawConverter" type="org.hps.recon.ecal.EcalRawConverter2Driver"/>
-        <driver name="EcalTimeCorrection" type="org.hps.recon.ecal.EcalTimeCorrectionDriver"/>
+        <driver name="EcalTimeCorrection" type="org.hps.recon.ecal.EcalTimeCorrectionDriver">
+	        <additionalShift>13.3</additionalShift>
+	    </driver>
         <driver name="ReconClusterer" type="org.hps.recon.ecal.cluster.ReconClusterDriver">
             <logLevel>WARNING</logLevel>
             <outputClusterCollectionName>EcalClusters</outputClusterCollectionName>
@@ -49,49 +51,49 @@
             <isMC>true</isMC>
         </driver>
         <driver name="HodoRawConverter" type="org.hps.recon.ecal.HodoRawConverterDriver">
-           <useRunningPedestal>true</useRunningPedestal>
+            <useRunningPedestal>true</useRunningPedestal>
             <inputCollectionName>HodoscopeReadoutHits</inputCollectionName>
-           <tETAllChannels>8</tETAllChannels>
-           <logLevel>CONFIG</logLevel>
+            <tETAllChannels>8</tETAllChannels>
+            <logLevel>CONFIG</logLevel>
             <isMC>true</isMC>
         </driver>
         <!-- SVT reconstruction drivers -->
         <!-- Driver used to associate raw tracker hits to corresponding sensor. -->
         <driver name="RawTrackerHitSensorSetup" type="org.lcsim.recon.tracking.digitization.sisim.config.RawTrackerHitSensorSetup">
-          <readoutCollections>SVTRawTrackerHits</readoutCollections>
+            <readoutCollections>SVTRawTrackerHits</readoutCollections>
         </driver>
         <!-- Fit the six raw samples and extract the amplitude and t0. --> 
         <driver name="RawTrackerHitFitterDriver" type="org.hps.recon.tracking.RawTrackerHitFitterDriver">
-          <chiSqrThresh>.5</chiSqrThresh>
-          <doOldDT>1</doOldDT>
-	  <fitAlgorithm>Pileup</fitAlgorithm>
-          <fitTimeMinimizer>Migrad</fitTimeMinimizer>
-          <!--use this to correct for trigger time in MC instead of subtractTriggerTime-->   
-          <useTimestamps>true</useTimestamps>     
-          <!--offset to get times centered at 0 after timestamp correction-->                 
-	  <!-- set to 0 for unspaced; ~112 for spaced -->
-	  <tsCorrectionScale>120</tsCorrectionScale>
-          <!--correct for the SVT fit time offset...this should be on if <useTimingConditions> is turned on in readout-->        
-          <correctTimeOffset>true</correctTimeOffset>   
-          <!--per sensor shift...set false becasue it's not in readout sim-->       
-          <correctT0Shift>true</correctT0Shift>      
-          <!--use truth time for MC???  typically not used-->             
-          <useTruthTime>false</useTruthTime>    
-          <!--time of flight corrections-->              
-          <subtractTOF>true</subtractTOF>     
-          <!--set this false for MC, true for data-->              
-          <subtractTriggerTime>false</subtractTriggerTime>           
-          <!--per-strip timing correction from database...this should be on i f <useTimingConditions> is turned on in readout  -->  
-          <correctChanT0>false</correctChanT0>          
-          <isMC>true</isMC>
-          <debug>false</debug>
+            <chiSqrThresh>.5</chiSqrThresh>
+            <doOldDT>1</doOldDT>
+	        <fitAlgorithm>Pileup</fitAlgorithm>
+            <fitTimeMinimizer>Migrad</fitTimeMinimizer>
+            <!--use this to correct for trigger time in MC instead of subtractTriggerTime-->   
+            <useTimestamps>true</useTimestamps>     
+            <!--offset to get times centered at 0 after timestamp correction-->                 
+	        <!-- set to 0 for unspaced; ~112 for spaced -->
+	        <tsCorrectionScale>165</tsCorrectionScale>
+            <!--correct for the SVT fit time offset...this should be on if <useTimingConditions> is turned on in readout-->        
+            <correctTimeOffset>true</correctTimeOffset>   
+            <!--per sensor shift...set false becasue it's not in readout sim-->       
+            <correctT0Shift>true</correctT0Shift>      
+            <!--use truth time for MC???  typically not used-->             
+            <useTruthTime>false</useTruthTime>    
+            <!--time of flight corrections-->              
+            <subtractTOF>true</subtractTOF>     
+            <!--set this false for MC, true for data-->              
+            <subtractTriggerTime>false</subtractTriggerTime>           
+            <!--per-strip timing correction from database...this should be on i f <useTimingConditions> is turned on in readout  -->  
+            <correctChanT0>false</correctChanT0>          
+            <isMC>true</isMC>
+            <debug>false</debug>
         </driver>
         <!-- 
              Use the fitted raw tracker hits and create 1D clusters using a 
              nearest neighbor algorithm. 
         --> 
         <driver name="TrackerHitDriver" type="org.hps.recon.tracking.DataTrackerHitDriver">
-             <neighborDeltaT>24.0</neighborDeltaT>
+            <neighborDeltaT>24.0</neighborDeltaT>
             <neighborDeltaTSigma>3.0</neighborDeltaTSigma>
             <saveMonsterEvents>false</saveMonsterEvents>
             <thresholdMonsterEvents>400</thresholdMonsterEvents>