VIDEO: Leap second: What does it mean?
Tuesday, June 30, 2015 - 09:00
in Biology & Nature
Midnight will come later tonight, as for the first time in three years, an extra second is added to the official time set by atomic clocks.
Updated by artificial intelligence Thu, 13 Mar 2025, 3:35:01 UTC Learn more
- Tell your friends
- Get science news via