Index: ps/trunk/source/lobby/XmppClient.cpp
===================================================================
--- ps/trunk/source/lobby/XmppClient.cpp
+++ ps/trunk/source/lobby/XmppClient.cpp
@@ -937,7 +937,14 @@
 		return std::time(nullptr);
 
 	// The locale is irrelevant, because the XMPP date format doesn't contain written month names
-	return g_L10n.ParseDateTime(msg.when()->stamp().to_string(), "Y-M-d'T'H:m:sZ", Locale::getUS()) / 1000.0;
+	for (const std::string& format : std::vector<std::string>{ "Y-M-d'T'H:m:sZ", "Y-M-d'T'H:m:s.SZ" })
+	{
+		UDate dateTime = g_L10n.ParseDateTime(msg.when()->stamp().to_string(), format, Locale::getUS());
+		if (dateTime)
+			return dateTime / 1000.0;
+	}
+
+	return std::time(nullptr);
 }
 
 /**