diff --git a/.gitignore b/.gitignore
index 33d620de8..1ca42931b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,3 +49,5 @@ runestone/*/test/build_info
 # IDEs
 .vscode/
 **/sphinx-enki-info.txt
+
+*.DS_Store
\ No newline at end of file
diff --git a/runestone/common/js/bookfuncs.js b/runestone/common/js/bookfuncs.js
index 8eacbd4df..72e33f1b2 100644
--- a/runestone/common/js/bookfuncs.js
+++ b/runestone/common/js/bookfuncs.js
@@ -172,7 +172,7 @@ function isLoggedIn() {
 
 function handleLoginLogout() {
     if (shouldLogin()) {
-        data = {timezoneoffset: (new Date()).getTimezoneOffset()/60 }
+        data = { timezoneoffset: (new Date()).getTimezoneOffset() }
         jQuery.get(eBookConfig.ajaxURL + 'getuser', data, gotUser).error(notifyRunestoneComponents);
     } else {
         $(document).trigger("runestone:logout")