Leap second — Astronoo
UTC adjusted by leap second addition | GALILEO
Leap Second Scheduled for June 30, 2012
Leap Second 2016 - YouTube
News Navigator: What is a leap second? - The Mainichi
Save the Leap Second!
LEAP SECOND TIME ADJUSTMENT DAY - December 31 - National Day Calendar
Leap second - Wikipedia
leap second~ A Maths Dictionary for Kids Quick Reference by Jenny Eather
Leap second on New Year's Eve: Why 1 second is being added to clocks on Dec. 31 - al.com
Everyday Time and Atomic Time: Part 5 | NIST
Leap Seconds | EndRun Technologies
Leap Second: Why June Will Be 1 Second Longer - ABC News
Leap Second - What is it?
Time to Save the Leap Second | American Scientist
What is a Leap Second and why is it worth your time?
How to Watch a Leap Second
What is a Leap Second and why is it worth your time?
It's time to leave the leap second in the past - Engineering at Meta
Leap Second' Tonight Will Cause 61-Second Minute | Space
Leap Seconds
The Leap Second Explained | Space Time | PBS Digital Studios - YouTube
We Should Drop the Leap Second Before It Causes Real Damage | WIRED
File:Leap Second 2015.png - Wikimedia Commons
