When Will Time End? (Version 1) (2009) - FAQ
Frequently asked questions about this film.
What is the global average human lifespan?
The global average human lifespan is 65 years.
How long does it take for the Earth to rotate once?
It takes approximately 23 hours, 56 minutes, and 4.1 seconds for the Earth to rotate once, when judged by the stars.
How often do we add a leap second to our clocks?
We add a leap second to our clocks about every 18 months.