If time could be transferred between people… I saw a science fiction movie titled ' In Time'.

plot:

In 2169, people are genetically engineered to stop aging on their 25th birthday. All people then develop a green glowing digital clock on their forearm; This clock begins counting down from 1 year. When the clock reaches zero, that person dies. Time has thus become the universal currency, and can be transferred between people.

Which world is better, the world time is the universal currency or this world?