Time Converter — Free Online Tool
Convert between ms, second, minute, hour, day, week, month and year in real time.
Result
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A month is treated as 30 days and a year as 365 days.
About Time Converter
The Time Converter switches durations between milliseconds, seconds, minutes, hours, days, weeks, months, and years. Type a value and the converted duration appears instantly with the formula shown, making it easy to plan schedules, timeouts, and project timelines.
For consistency, a month is treated as 30 days and a year as 365 days. Because the calculation runs entirely in your browser, you get instant, private results, which is handy for developers working with timeouts as well as anyone estimating durations.
How to Use Time Converter
- Enter the duration you want to convert in the Value field.
- Choose the source unit, such as hours, in the From dropdown.
- Choose the target unit, such as minutes, in the To dropdown.
- Read the converted duration instantly and copy it if needed.
Key Features
Convert across 8 time units from milliseconds to years
Live results that update as you type
Swap button to reverse the conversion direction
Shows the conversion formula for each result
Consistent rules: month = 30 days, year = 365 days
Runs fully client-side with one-click copy
Frequently Asked Questions
How many seconds are in a day?
One day equals 86,400 seconds, which is 24 hours multiplied by 60 minutes and then by 60 seconds.
How many hours are in a week?
One week equals 168 hours, calculated as 7 days multiplied by 24 hours.
How does this tool define a month and a year?
For simple and consistent conversions, this tool treats a month as exactly 30 days and a year as exactly 365 days.
How many milliseconds are in a second?
One second equals 1,000 milliseconds. Milliseconds are commonly used in programming for timers and delays.