Day trading is perhaps the most popular active trading strategy. It is a common misconception that all active traders are day traders, but that is not true.
Day trading involves entering and exiting trades within the same day, so day traders aim to profit from intraday price movements, i.e. price movements that occur within a single trading day.
The term "day trading" originated in traditional markets where trading is open only during certain hours of the day. Therefore, in these markets, day traders do not stay in trades overnight, when trading is halted. Not financial advice. Do your own research.