Time Converters
One minute is 60 seconds, one hour is 3,600 seconds, and one day is 86,400 seconds — fixed relationships that underpin every conversion on this page. A week stretches that to 604,800 seconds, a number that matters when you're billing by the second or sizing a cache TTL. Start with hours to minutes or seconds to minutes for the everyday conversions, and use the full list below for the rest.
The 36 converters here cover the full range of practical time units — milliseconds for code profiling, minutes and hours for scheduling, days and weeks for project timelines. Millisecond conversions are exact. Days, hours, minutes, and seconds share exact fixed ratios too. Months and years are the exception: a month averages 30.4375 days and a year averages 365.25 days, so those conversions use standard average values rather than a fixed count. The day-to-minute converter, for instance, uses the exact 1,440 minutes per day.
Pick any pair from the popular list or scroll to the complete set. Every tool works in both directions — convert forward, then flip the tab to reverse. No rounding shortcuts, no approximations where exact factors exist.
Most popular
Seconds to Minutes Converter
1 minute = 60 seconds. Convert seconds to minutes and back with a values table and mental-math tips.
Months to Seconds
1 average month = 2,629,800 seconds. Convert months to seconds and back with a month-length comparison.
Milliseconds to Minutes
1 minute = 60,000 milliseconds. Convert milliseconds to minutes and back with real timing examples.
Hours to Minutes Converter
1 hour = 60 minutes. Convert hours to minutes and back with a payroll decimal-hours chart.
Minutes to Milliseconds
Convert minutes to milliseconds and back.
Weeks to Minutes
Convert weeks to minutes and back.
Days to Minutes Converter
Convert days to minutes and minutes to days.
All time converters
Hours to Minutes Converter
1 hour = 60 minutes. Convert hours to minutes and back with a payroll decimal-hours chart.
Days to Hours Converter
Convert days to hours and hours to days with simple multiplication.
Seconds to Minutes Converter
1 minute = 60 seconds. Convert seconds to minutes and back with a values table and mental-math tips.
Minutes to Hours Converter
Convert minutes to hours and hours to minutes instantly.
Days to Seconds Converter
Convert days to seconds and seconds to days.
Hours to Seconds Converter
Convert hours to seconds and seconds to hours.
Seconds to Hours Converter
Convert seconds to hours and hours to seconds.
Days to Minutes Converter
Convert days to minutes and minutes to days.
Months to Days Converter
Convert months to days and days to months.
Years to Decades Converter
Convert years to decades and decades to years.
Milliseconds to Seconds Converter
Convert milliseconds to seconds and seconds to milliseconds.
Microseconds to Seconds Converter
Convert microseconds to seconds and seconds to microseconds.
Seconds to Nanoseconds Converter
Convert seconds to nanoseconds and nanoseconds to seconds.
Centuries to Minutes
Convert centuries to minutes and back.
Centuries to Seconds
Convert centuries to seconds and back.
Decades to Minutes
Convert decades to minutes and back.
Microseconds to Days
Convert microseconds to days and back.
Microseconds to Minutes
Convert microseconds to minutes and back.
Milliseconds to Days
Convert milliseconds to days and back.
Milliseconds to Minutes
1 minute = 60,000 milliseconds. Convert milliseconds to minutes and back with real timing examples.
Minutes to Centuries
Convert minutes to centuries and back.
Minutes to Decades
Convert minutes to decades and back.
Minutes to Microseconds
Convert minutes to microseconds and back.
Minutes to Milliseconds
Convert minutes to milliseconds and back.
Minutes to Months
Convert minutes to months and back.
Minutes to Nanoseconds
Convert minutes to nanoseconds and back.
Minutes to Seconds
Convert minutes to seconds and back.
Minutes to Weeks
Convert minutes to weeks and back.
Months to Milliseconds
Convert months to milliseconds and back.
Months to Minutes
Convert months to minutes and back.
Months to Seconds
1 average month = 2,629,800 seconds. Convert months to seconds and back with a month-length comparison.
Months to Years
Convert months to years and back.
Nanoseconds to Minutes
Convert nanoseconds to minutes and back.
Weeks to Minutes
Convert weeks to minutes and back.
Years to Minutes
Convert years to minutes and back.
Years to Seconds
Convert years to seconds and back.