Free Time Converter

Project estimates in weeks, server uptime in seconds, a toddler’s age in months — time gets measured in whatever unit fits the moment. This free time converter moves between nanoseconds and years instantly, with months and years using precise average lengths.

ℹ️Months and years use average lengths (30.436875 days and 365.25 days).
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Value in all time units

UnitValue
Private by design. This tool runs 100% in your browser — nothing is uploaded to any server.

How to Use the Time Converter

  1. Enter a value in the input box above.
  2. Choose the units to convert from and to — use the ⇄ button to swap them instantly.
  3. See the result immediately, plus the value converted into every other time unit in the table below.
  4. Copy the result with one click to use it anywhere.

Features

Ten time units from nanoseconds to years, live conversion as you type, one-click direction swap, and a full table of equivalents. Average month (30.436875 days) and year (365.25 days) lengths keep long-range conversions honest.

Benefits & Use Cases

Project managers, developers measuring latency, payroll staff, and students all get exact figures without chain-multiplying by 60. The comparison table makes it easy to express one duration several ways.

Tips

There are 86,400 seconds in a day — a handy constant for programmers. When converting months to days for billing, check whether your contract means calendar months or 30-day months.

Frequently Asked Questions

How many seconds are in a day?

86,400 seconds (24 × 60 × 60).

How many minutes are in a year?

525,960 minutes in a 365.25-day average year.

How long is an average month in days?

30.436875 days — the 365.25-day year divided by 12. This converter uses that average.

How do I convert milliseconds to seconds?

Divide by 1,000. For example, 2,500 ms = 2.5 s.

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