Leap second helps us with the reality of time
![leap second](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/06/Leap_second_free.png?fit=860%2C460&ssl=1)
To add a leap second on June 30, the official time will be 23:59:60 or 11:59:60 p.m.
Twid/Wikimedia Commons (Public Domain)
To add a leap second on June 30, the official time will be 23:59:60 or 11:59:60 p.m.
Twid/Wikimedia Commons (Public Domain)