Duration Calculator

Convert between seconds and human-readable duration. 3661 seconds = 1h 1m 1s. Simple, fast, and free.

Result:

Enter seconds or human-readable duration to convert.

Duration Calculator

Convert between seconds and human-readable duration format. Useful for configuring timeouts, calculating video length, or parsing duration strings.

Supported Formats

  • d or days – days
  • h or hours – hours
  • m or min/minutes – minutes
  • s or sec/seconds – seconds

Examples

3661 seconds → 1h 1m 1s
9000 seconds → 2h 30m
86400 seconds → 1d
2h 30m → 9000 seconds
1d 12h → 129600 seconds

Pro Tips

  • Combine units: "1h 30m 45s", "2d 5h", "90m"
  • Case insensitive: "2H 30M" works the same

Related Tools

🕐

Timestamp to Date

Convert UNIX timestamps to human-readable dates instantly. Free online tool for developers to convert epoch time to readable date format. Supports multiple timezones.

⏲️

Milliseconds to Seconds

Convert between millisecond and second timestamps. JavaScript vs Unix epoch. Free online converter.

📆

Date Difference Calculator

Calculate days, hours, minutes between two dates. Free online date difference calculator.

⏰

Cron Expression Parser

Parse cron expressions to human-readable schedule. Free online cron parser for developers.