Utilities
Time Duration Calculator
Convert a duration between seconds, minutes, hours, days, and weeks locally in your browser.
Convert a duration between seconds, minutes, hours, days, and weeks. Zero is a valid duration.
Calculations run locally in your browser; your duration is not uploaded or stored.
Convert one duration into the time units you need.
Enter a non-negative duration and choose its unit to see the equivalent seconds, minutes, hours, days, and weeks. Zero is valid. The calculator uses standard fixed-length units: 60 seconds per minute, 60 minutes per hour, 24 hours per day, and 7 days per week. It runs locally in your browser, so your value is not uploaded or stored.
Frequently Asked Questions
Everything you need to know about this tool, how it works, and privacy.
Which time units can I convert?
You can enter seconds, minutes, hours, days, or weeks. The calculator returns the equivalent value in all five units using 60 seconds per minute, 60 minutes per hour, 24 hours per day, and 7 days per week.
Can I convert zero or decimal durations?
Yes. Zero is a valid duration, and decimal values are accepted. Results are displayed with up to six decimal places when needed.
Does this account for calendar months or years?
No. Months and years vary in length, so this tool intentionally converts only fixed-length units: seconds, minutes, hours, days, and weeks.
Does my duration leave my browser?
No. The conversion and copy action run locally in your browser. CodeASystem does not upload or store the value you enter.