Although crypto markets trade 24/7, there are spikes in volume according to the general hours at which different parts of the world do the majority of their trading.
This Script highlights the US, European and Asian markets when they are most active. The normal market hours are always from 08:00 to 16:30 local time.
US market opens at 8:00 Silicon Valley local time, and closes at 16:30 New York local time.
European market opens at 8:00 London local time, and closes at 16:30 Frankfurt local time.
Asian market opens at 8:00 Hong Kong local time, and closes at 16:30 Sydney local time.