Runs in your browser · nothing is uploaded
Convert time.
Seconds to minutes, days to hours, years to days. The month and the year are averages here, and the page says which.
Time
Type a value, or “5cm to in”
To
Decimals
Converted
1 row could not be read rows could not be read
Every unit at once
14 units
Common time conversions
Each of these has its own page with the formula, a values table and both directions.
Every time unit on this page
- second s
- The SI base unit of time, defined since 1967 as 9,192,631,770 cycles of cesium-133 radiation.
- millisecond ms
- A thousandth of a second, the standard unit for measuring latency in computing and communications.
- microsecond µs
- A millionth of a second, used for computer memory speed and electronic signal timing.
- nanosecond ns
- A billionth of a second, the natural timescale of modern semiconductors and computer chips.
- minute min
- Sixty seconds, the everyday unit for appointments and timekeeping.
- hour h
- Sixty minutes, the everyday unit for schedules, appointments and travel time.
- day d
- Twenty-four hours, the time of one complete Earth rotation and the calendar base unit.
- week wk
- Seven days, the standard period for work weeks, rent and recurring schedules.
- fortnight fn
- Fourteen days or two weeks, still used in British English for payroll and lease periods.
- month mo
- Approximately 2,629,800 seconds — one twelfth of a Julian year of 365.25 days, the calendar billing period.
- year yr
- The Julian year of 365.25 days, the time for Earth to complete one orbit around the Sun.
- decade dec
- Ten years, used for historical periods and marking generational change.
- century c
- One hundred years, the standard period of historical chronology.
- millennium ky
- One thousand years, the largest standard period in the calendar.
You are already here. The file tools are free too.
Merge and split PDFs, convert and resize images, cut out a background. Same deal as this page: no account, no watermark, and most of them never upload your file.