Today, we gain some time back, finally! But don't blink or you might miss it.
Today, June 30th, we get an extra second! At 8 p.m. Eastern time we'll gain an extra second to make up for the gradual slow down of the Earth's rotation. Instead of the usual 86,400-second Earth rotation, today it'll be 86,401 seconds long.
So what can you do with one extra second?