1. Bring up the Code Snippets window (CTRL+ALT+ T)
2. Navigate to the 'Favorites' folder
3. Right Click Favorites | New Snippet
4. Once the New Snippet window is displayed, click F1 to bring up context sensitive help.
5. Scroll down and you will see some System Variables that can be used e.g. %datetime% gives the format 6/20/2014 12:23:27 PM
Use CTRL+ Q to insert the snippet from the Favorites folder.