I'm ready for today's exciting leap second at midnight UTC, 4 hours from now. The clock will read 11:59:58, then 11:59:59, then 11:59:60, then 12:00:00, then 12:00:01, at least if you have a clock smart enough to know about leap seconds. If you're on the U.S. West coast or points even further west, you'll probably still be at work. You have my sympathy for having to work an extra second today. If you're further east and it's after work, be sure to spend your extra second doing something enjoyable. You've earned it! The most recent leap second before this one was 3 years ago, on June 30, 2012.