When do you use instruments whenflying a plane?

Instruments are used when flying a plane primarily during conditions of low visibility, such as in clouds, fog, or nighttime. They allow pilots to monitor the aircraft's altitude, speed, heading, and other critical parameters to maintain control and navigate safely. Additionally, instruments are essential for precision approaches and landings, as well as for adhering to air traffic control instructions. Overall, instrument flying ensures safety and accuracy in various flying conditions.