Time Converters

How to Convert Time Units

Time conversion means changing a duration from one unit to another—like seconds, minutes, hours, or days. Unlike units of length, which usually scale by neat powers of ten in metric, time mixes both simple and irregular relationships. For example, 60 seconds make a minute and 60 minutes make an hour, but days, months, and years vary in length because of the way calendars are defined.

For example: 60 seconds = 1 minute, 3,600 seconds = 1 hour, and 86,400 seconds = 1 day. Months and years are usually handled using average values, since not every month or year has the same number of days. A converter helps handle these details automatically so you can work confidently with schedules, projects, age calculations, and time spans without worrying about the math.

Common Time Units in Everyday Use

Time is usually measured in seconds for very short events, minutes and hours for daily activities, and days or weeks for planning schedules and deadlines. Months and years are used to describe longer periods such as subscriptions, contracts, and lifespans. Even though all these units describe the same kind of duration, they work at very different scales. This tool converts between them instantly, so you can move from seconds to years—or anything in between—with a single calculation.