Time transfer

Time transfer is when people need to know the exact same time in different places. Say you and your friend are in a different city, but you want to call her at exactly 12 o'clock. You need to make sure you both have the same time so that your call is not too early or too late.

There are special machines called atomic clocks that keep really precise time down to very tiny fractions of a second. These clocks are used as a standard for time around the world. Scientists and organizations communicate with each other to make sure they have the same time even if they are really far away from each other.

They have a special way of sending the time signal to each other. It's called a time transfer. They use special signals like radio waves, laser beams, or even satellites to send the time signal accurately and quickly. With a time transfer, people can make sure they have the same time no matter where they are in the world.