This hour converter expresses one duration in seconds, minutes, hours, days, weeks, average Gregorian months, and average Gregorian years.
Conversion
Hour Converter
Convert a duration between hours and common time units using consistent average month and year definitions.
Calculator
About this calculator
Formula notes
seconds = input x selected-unit seconds; each output = seconds / output-unit seconds. One year is 365.25 days and one month is one twelfth of that year.
Worked examples
- Example: 48 hours equals 172,800 seconds, 2 days, about 0.2857 weeks, and about 0.0657 average months.
- A duration of 72 hours converts to 4,320 minutes, 3 days, about 0.428571 weeks, and about 0.098563 average months.
How to use it
- Enter a nonnegative duration.
- Choose the unit attached to the input.
- Read the equivalent value in each listed duration unit.
Frequently asked questions
Why is a year 365.25 days here?
It is a stable average for duration conversion, not a claim that every calendar year has the same length.
Can this calculate a future date?
No. Use a calendar-aware date tool when month lengths, leap days, time zones, or daylight-saving changes matter.
Limits and interpretation
- Months and years are fixed average-duration units here, so they do not reproduce actual calendar boundaries, leap days, or daylight-saving transitions.
- Displayed values can be rounded; using a rounded result as a new input can accumulate avoidable error over repeated conversions.