Convert Hour to Second

One h equals 3,600 s. This converter allows you to easily convert between Hour and Second in real time.

Formula

h × 3,600 = s

Example: 1 h = 3,600 s

What is Hour?

An hour is 60 minutes, or exactly 3,600 seconds. The division of the day into 24 hours dates back to ancient Egypt, where daytime and nighttime were each split into 12 parts. Hours are used to measure work shifts, class periods, movie durations, and travel times. Speed is expressed as distance per hour (km/h or mph), and hourly wages are a common form of compensation. The hour strikes a practical balance between the day and the minute for scheduling and timekeeping.

What is Second?

The second is the base unit of time in the International System of Units (SI). Originally defined as 1/86,400 of a mean solar day, it has been defined since 1967 by the radiation corresponding to 9,192,631,770 periods of the cesium-133 atom's ground-state hyperfine transition. Seconds are essential for precise timing in athletics, traffic signals, heart-rate monitoring, and scientific experiments. In computing and networking, latency and response times are measured in seconds or milliseconds.