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ToolWrenConvert durations between seconds, minutes, hours, days, weeks, months and years.
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Time Units is a free, private online tool that lets you convert time units between seconds, minutes, hours, days, weeks, months and years. It runs entirely in your browser, so nothing you enter is uploaded to a server.
Privacy: this tool runs entirely in your browser. Your input is never sent to, received by, or stored on any server — there are no uploads and no tracking of what you enter.
From milliseconds up to years, time units relate by fixed factors (60 seconds per minute, 60 minutes per hour, 24 hours per day).
Months and years vary in length; this tool uses 30-day months and 365-day years for quick estimates.
Converting durations for projects, cooking, programming timeouts and everyday planning.
This tool converts durations between time units — from milliseconds and seconds up to minutes, hours, days, weeks, months and years. It is for working with spans of time (how long something lasts), as opposed to converting a specific calendar date, which the date tools handle.
The units relate by fixed factors: 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day, 7 days in a week. The tool converts your value to a base unit (seconds) and then out to the target. So a quick reference: 1 day = 86,400 seconds, 1 week = 604,800 seconds, 1 hour = 3600 seconds.
Unlike seconds and days, months and years vary in length — months have 28 to 31 days, and years have 365 or 366 days. For quick estimates this converter uses a 30-day month and a 365-day year. When you need exact calendar arithmetic (the actual number of days between two real dates), use the Date Difference calculator instead.
Time-unit conversion turns up when setting timeouts and durations in code (which are often in milliseconds or seconds), estimating project lengths, working out how many hours are in a sprint or how many days in a quarter, and everyday planning. Seeing a duration in several units at once makes scale intuitive.
Convert a process timeout from milliseconds to a readable duration, work out how many hours a multi-day event spans, or translate a subscription length between months and days. It runs entirely in your browser.