The most common time periods for moving averages are 10, 15, 20, 30, 50, 100, and 200 bars. Depending on the time period selected, these intervals can be minutes, hours, or days. Short-term moving averages such as 10, 20, or 50 are typically preferred by day traders. In swing trading, traders focus on longer time frames and typically use the 20, 50, 100, and 200 moving averages.