Time Measurement How long is a 5 minute? January 30, 2026 by pups | Leave a Comment A 5-minute duration is equivalent to 300 seconds. A minute is defined as a unit of time equal to 60 seconds. This definition is based on the International System of Units (SI), where the second is precisely defined using the radiation emitted by cesium atoms under specific conditions. How Many Seconds Are in a 5 […] Read more »