This plugin makes it easy to conditionally display content. No more if statements in your template files!
Try clicking the 'show/hide kitchen sink' button. This will display additional buttons, and may reveal the '[if]' button. If not, clear your browser cache and try again.
Yes, this plugin uses the PHP function strtotime(), so you can do date and time like '2010-12-31 23:59:59' in the 'date' field for 12:59:59PM on Dec. 31 2010. See the PHP documentation for strtotime() for more examples of what you can use.