diff --git a/templates/fediplan/schedule.html.twig b/templates/fediplan/schedule.html.twig
index ab7b4e8..834c982 100644
--- a/templates/fediplan/schedule.html.twig
+++ b/templates/fediplan/schedule.html.twig
@@ -485,6 +485,7 @@
                     $('#compose_attach_poll').val(0);
                 }
             });
+
             var $collectionHolder;
 
             // setup an "add a tag" link
@@ -543,8 +544,17 @@
                 searchPosition: "bottom",
                 search: false
             });
-            var timezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
+            var timezone;
+
+            if(!!sessionStorage.getItem('timeZone')) {
+                timezone = sessionStorage.getItem('timeZone');
+            } else {
+                timezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
+            }
             $('#compose_timeZone').val(timezone);
+            $('#compose_timeZone').on('change', function () {
+                sessionStorage.setItem("timeZone", this.value);
+            });
             $(document).on('click', '.delete_media', function () {
                 var id = $(this).attr('data-id');
                 $('#media_container_' + id).remove();