Time Unit Converter
The Time Unit Converter lets you instantly convert any time value between seconds, minutes, hours, days, weeks, months (defined as 30 days), and years (defined as 365 days). Simply enter a number, choose the source unit and the target unit, and the result appears immediately — no button to press.
Time conversions are essential in programming, project planning, scientific research, and everyday life. Whether you need to know how many seconds are in a week or how many years correspond to a million minutes, this tool handles the math precisely and transparently.
How it works
All conversions go through a common base (seconds). Each unit has a fixed factor: 1 minute = 60 s, 1 hour = 3 600 s, 1 day = 86 400 s, 1 week = 604 800 s, 1 month = 2 592 000 s (30 d), 1 year = 31 536 000 s (365 d). Result = input × (seconds_per_from_unit / seconds_per_to_unit).
Use cases
- Converting API rate-limit intervals from seconds to hours
- Calculating project durations in days or weeks from total hours worked
- Determining how many seconds remain until a deadline given in days
- Converting scientific experiment durations between different time scales
- Estimating age in days, weeks, or months from years