1 hrs 35mins

Inside lag is the time to implement (pass) a policy, while outside lag is the time it needs to take effect.

The impact of an event happening at a distance takes some time to reach the observer. This is the lag time and, as the distance increases, the lag time increases. The increase depends on the velocity of transmission of the information.

For example, the lag time for a flash of lightning depends on the speed of light; the lag time for the clap of thunder depends on the speed of sound; the lag time for the person that the lightning bolt missed depends on how fast they can run to you.

no time lag.................

An event occuring at time t+k is said to lag behind event occurring at time t. Extent of lag is k.