diff --git a/LDK/resources/web/LDK/ConvertUtils.js b/LDK/resources/web/LDK/ConvertUtils.js
index 5773f14b..a026ffa0 100644
--- a/LDK/resources/web/LDK/ConvertUtils.js
+++ b/LDK/resources/web/LDK/ConvertUtils.js
@@ -4,6 +4,8 @@ Ext4.ns('LDK');
  * Static helpers designed to help with type conversion in JS.
  */
 LDK.ConvertUtils = new function(){
+    var verboseLogging = false;
+
     var DATEFORMATS = LABKEY.Utils.getDateAltFormats().split('|');
     DATEFORMATS.push('Y/m/d H:i:s');
     DATEFORMATS.push('n-j-Y');
@@ -16,7 +18,7 @@ LDK.ConvertUtils = new function(){
     //@private
 
     //adapted from Ext.field.Date.  will parse a date in the given format, returning null if it does not match
-    function safeParseDate(value, format, useStrict){
+    function safeParseDate(value, format, useStrict, verboseLogging){
         var result = null,
                 parsedDate;
 
@@ -26,28 +28,42 @@ LDK.ConvertUtils = new function(){
 
         useStrict = Ext4.isDefined(useStrict) ? useStrict : false;
 
+        // The core of the parsing problem comes from JS Date.parse() treating ISO 8601 short differently from other date formats:
+        // https://www.w3.org/TR/NOTE-datetime
+        // Example:
+        // new Date('2024-01-01')
+        // Sun Dec 31 2023 16:00:00 GMT-0800 (Pacific Standard Time)
+        // new Date('1/1/2024')
+        // Mon Jan 01 2024 00:00:00 GMT-0800 (Pacific Standard Time)
+        // Therefore special case this format and append the browser's time zone:
+        if (format === 'c' && value && value.length === 10) {
+            if (verboseLogging) {
+                console.log('switching from c to Y-m-d format')
+            }
+
+            format = 'Y-m-d';
+        }
+
         if (Ext4.Date.formatContainsHourInfo(format)) {
             // if parse format contains hour information, no DST adjustment is necessary
             result = Ext4.Date.parse(value, format, useStrict);
         } else {
-            // The core of the parsing problem comes from JS Date.parse() treating ISO 8601 short differently from other date formats:
-            // https://www.w3.org/TR/NOTE-datetime
-            // Example:
-            // new Date('2024-01-01')
-            // Sun Dec 31 2023 16:00:00 GMT-0800 (Pacific Standard Time)
-            // new Date('1/1/2024')
-            // Mon Jan 01 2024 00:00:00 GMT-0800 (Pacific Standard Time)
-
-            // Therefore special case this format and append the browser's time zone:
-            if (format === 'c' && value.length === 10) {
-                format = 'Y-m-d';
-            }
-
             parsedDate = Ext4.Date.parse(value, format, useStrict);
             if (parsedDate) {
                 result = Ext4.Date.clearTime(parsedDate);
             }
         }
+
+        // TODO: added for insight into TeamCity test failures. Ultimately remove this.
+        if (verboseLogging && result) {
+            var msg = 'Parsing, raw value: ' + value + ', format: ' + format + ', result: ' + result;
+            console.log(msg);
+
+            LDK.Utils.logToServer({
+                level: 'INFO',
+                message: msg
+            })
+        }
         return result;
     }
 
@@ -86,7 +102,7 @@ LDK.ConvertUtils = new function(){
 
             var val;
             for (var i=0; i < formats.length; ++i) {
-                val = safeParseDate(value, formats[i]);
+                val = safeParseDate(value, formats[i], true, verboseLogging);
                 if (val) {
                     break;
                 }
@@ -113,6 +129,10 @@ LDK.ConvertUtils = new function(){
                     }, this);
                 }
             }, this);
+        },
+
+        setVerboseLogging: function(val) {
+            verboseLogging = val;
         }
     }
 };
\ No newline at end of file
diff --git a/LDK/test/src/org/labkey/test/tests/external/labModules/LabModulesTest.java b/LDK/test/src/org/labkey/test/tests/external/labModules/LabModulesTest.java
index e31b1780..8a64d61b 100644
--- a/LDK/test/src/org/labkey/test/tests/external/labModules/LabModulesTest.java
+++ b/LDK/test/src/org/labkey/test/tests/external/labModules/LabModulesTest.java
@@ -16,15 +16,12 @@
 package org.labkey.test.tests.external.labModules;
 
 import org.apache.commons.lang3.StringUtils;
-import org.apache.commons.lang3.time.DateFormatUtils;
-import org.apache.commons.lang3.time.DateUtils;
 import org.apache.commons.lang3.tuple.Pair;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
-import org.labkey.api.util.DateUtil;
 import org.labkey.remoteapi.CommandException;
 import org.labkey.remoteapi.Connection;
 import org.labkey.remoteapi.collections.CaseInsensitiveHashMap;
@@ -1499,6 +1496,14 @@ private void samplesTableTest() throws Exception
         new Window.WindowFinder(getDriver()).withTitle("Mark Removed").waitFor();
         Ext4FieldRef.getForLabel(this, "Date Removed").setValue("2017-01-02");
         Ext4FieldRef.getForLabel(this, "Comment").setValue("I removed these samples");
+
+        // TODO: for debugging date. ultimately remove
+        BaseWebDriverTest.getCurrentTest().getArtifactCollector().dumpPageSnapshot("LabModulesTestDate1");
+
+        // Debug date parsing
+        String clientFormattedString = (String)executeScript("return Ext4.Date.format(LDK.ConvertUtils.parseDate('2017-01-02'), 'Y-m-d');");
+        assertEquals("Incorrect date parsing", clientFormattedString, "2017-01-02");
+
         waitAndClickAndWait(Ext4Helper.Locators.ext4Button("Submit"));
 
         dr = new DataRegionTable.DataRegionFinder(getDriver()).withName("query").find();
@@ -1515,7 +1520,7 @@ private void samplesTableTest() throws Exception
         {
             Assert.assertEquals("I removed these samples", row.get("remove_comment"));
             Assert.assertEquals(getUserId(), row.get("removedby"));
-            Assert.assertEquals("2017-01-02", dateFormat.format(row.get("dateremoved")));
+            Assert.assertEquals("Incorrect date, raw value: " + row.get("dateremoved"), "2017-01-02", dateFormat.format(row.get("dateremoved")));
         }
     }
 
diff --git a/LDK/test/src/org/labkey/test/util/external/labModules/LabModuleHelper.java b/LDK/test/src/org/labkey/test/util/external/labModules/LabModuleHelper.java
index 828f9769..92f7ef32 100644
--- a/LDK/test/src/org/labkey/test/util/external/labModules/LabModuleHelper.java
+++ b/LDK/test/src/org/labkey/test/util/external/labModules/LabModuleHelper.java
@@ -193,7 +193,7 @@ public void addRecordsToAssayTemplate(String[][] data, List<String> expectedColu
         for (String[] row : data)
         {
             sb.append(StringUtils.join(row, '\t'));
-            sb.append(System.getProperty("line.separator"));
+            sb.append(System.lineSeparator());
         }
 
         _test.waitForText("Sample Information");
diff --git a/laboratory/resources/web/laboratory/window/AssaySpreadsheetImportWindow.js b/laboratory/resources/web/laboratory/window/AssaySpreadsheetImportWindow.js
index 62de950b..a8765ef2 100644
--- a/laboratory/resources/web/laboratory/window/AssaySpreadsheetImportWindow.js
+++ b/laboratory/resources/web/laboratory/window/AssaySpreadsheetImportWindow.js
@@ -62,6 +62,9 @@ Ext4.define('Laboratory.ext.AssaySpreadsheetImportWindow', {
                         return;
                     }
 
+                    // TODO: debugging, ultimately remove this
+                    LDK.ConvertUtils.setVerboseLogging(true);
+
                     var models = LDK.StoreUtils.getModelsFromText({
                         store: win.targetGrid.store,
                         text: text
@@ -77,6 +80,9 @@ Ext4.define('Laboratory.ext.AssaySpreadsheetImportWindow', {
 
                     win.targetGrid.store.add(toAdd);
 
+                    // TODO: debugging, ultimately remove this
+                    LDK.ConvertUtils.setVerboseLogging(false);
+
                     win.close();
                 }
             },{