diff --git a/src/TurnerSoftware.SitemapTools/Parser/XmlSitemapParser.cs b/src/TurnerSoftware.SitemapTools/Parser/XmlSitemapParser.cs
index e967bb2..0d24dd9 100644
--- a/src/TurnerSoftware.SitemapTools/Parser/XmlSitemapParser.cs
+++ b/src/TurnerSoftware.SitemapTools/Parser/XmlSitemapParser.cs
@@ -75,7 +75,7 @@ private SitemapIndexEntry ParseSitemapIndex(XmlNode sitemapNode)
 				}
 				else if (nodeName.Equals("lastmod", StringComparison.InvariantCultureIgnoreCase))
 				{
-					if (DateTime.TryParse(nodeValue, CultureInfo.InvariantCulture, DateTimeStyles.AllowWhiteSpaces, out var tmpLastModified))
+					if (DateTime.TryParse(nodeValue, CultureInfo.InvariantCulture, DateTimeStyles.None, out var tmpLastModified))
 					{
 						result.LastModified = tmpLastModified;
 					}
@@ -101,7 +101,7 @@ private SitemapEntry ParseSitemapEntry(XmlNode urlNode)
 				}
 				else if (nodeName.Equals("lastmod", StringComparison.InvariantCultureIgnoreCase))
 				{
-					if (DateTime.TryParse(nodeValue, CultureInfo.InvariantCulture, DateTimeStyles.AllowWhiteSpaces, out var tmpLastModified))
+					if (DateTime.TryParse(nodeValue, CultureInfo.InvariantCulture, DateTimeStyles.None, out var tmpLastModified))
 					{
 						result.LastModified = tmpLastModified;
 					}