Time Converter
Convert between seconds, minutes, hours, days, weeks, months, and years
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Complete Guide: Time Converter
Everything you need to know about using this tool effectively
The Time Converter transforms time measurements between seconds, minutes, hours, days, and milliseconds. You enter a value in one unit and see the equivalent in all others. The tool handles decimal values so you can convert 1.5 hours to 90 minutes or 5,400 seconds. All processing happens in the browser.
This tool uses standard time conversion factors: 60 seconds = 1 minute, 60 minutes = 1 hour, 24 hours = 1 day, 1000 milliseconds = 1 second. It normalizes to seconds internally and converts to all other units.
Calculating work hours
Convert 7.5 hours to 450 minutes for a timesheet.
Converting cooking times
Convert 90 minutes to 1.5 hours for a recipe that uses different time units.
Programming timeouts
Convert a timeout value from seconds to milliseconds for a code configuration.
Scheduling events
Convert a 3-day event to 72 hours for calendar planning.
Enter a value
Type the time and select the source unit.
View all conversions
The tool shows the equivalent in all five units.
Copy a value
Copy the unit you need.
1 hour = 60 minutes = 3,600 seconds.
1 day = 24 hours = 1,440 minutes = 86,400 seconds.
For milliseconds: 1 second = 1,000 ms.
Decimal hours are common in timesheets: 7.5 hours = 7 hours 30 minutes.
What time units are supported?
Seconds, minutes, hours, days, and milliseconds.
Can I convert decimal values?
Yes. The tool accepts decimal values like 1.5 hours or 0.25 days.
Is my data sent to a server?
No. All conversion happens in your browser. Nothing is transmitted.
How many seconds are in a day?
There are 86,400 seconds in a day (24 x 60 x 60).
Can I convert negative values?
The tool is designed for positive time values.