diff --git a/init.el b/init.el
index 1a1018e..703b6d4 100644
--- a/init.el
+++ b/init.el
@@ -67,6 +67,7 @@
 (load (concat user-emacs-directory "toggle-window-split.el"))
 (load (concat user-emacs-directory "round-number-to-decimals.el"))
 (load (concat user-emacs-directory "transpose-windows.el"))
+(load (concat user-emacs-directory "zim.el"))
 (load (concat user-emacs-directory "clearcase.el"))
 
 (add-hook 'c-mode-hook
diff --git a/zim.el b/zim.el
new file mode 100644
index 0000000..e3896e0
--- /dev/null
+++ b/zim.el
@@ -0,0 +1,6 @@
+(defun insert-zim-timestamp ()
+  (interactive)
+  (insert (format-time-string "%Y-%m-%dT%H:%M:%S%z"))
+  (forward-char -2)
+  (insert ":")
+  (forward-char 2))