--- a/.gitmodules
+++ b/.gitmodules
@@ -28,4 +28,7 @@
 [submodule "lib/amon-php"]
 	path = lib/amon-php
 	url = https://github.com/martinrusev/amon-php.git
+[submodule "documents/lib/parsedatetime"]
+	path = documents/lib/parsedatetime
+	url = git://github.com/bear/parsedatetime.git