Time Unit Converter
Convert time values across multiple units by entering a single number.
You can instantly convert between milliseconds, seconds, minutes, hours, days, and weeks, with all results updating automatically.
This tool is useful for estimating durations, checking time calculations, and converting values found in logs, configuration files, or documentation.
By selecting the source unit, all other units are recalculated in real time, allowing quick comparison without manual math.
All calculations are performed directly in your browser.
No input values are sent to any server, making this converter fast, simple, and safe for everyday development and reference use.
Converted values
Updated automaticallyTime Unit Converter
Timeouts, cache TTLs, retry delays, monitoring intervals, animation durations, and job schedules often use different units. This converter helps translate milliseconds, seconds, minutes, hours, and days so settings are easier to review before they reach production.
Common use cases
- Check timeouts: Convert
30000msto30 secondsor5 minutesto300000ms. - Review cache TTLs: Translate Redis, CDN, API, or browser cache values into readable durations.
- Verify polling intervals: Confirm retry delays, cron-related intervals, and monitoring windows.
Unit mistakes are common
Some libraries expect milliseconds while others expect seconds. Before pasting a value into configuration, check the documentation and convert the number into the exact unit the system expects.
Articles for this tool
How to Convert Milliseconds, Seconds, Minutes, and Hours for Timeouts and TTLs
Convert time units for API timeouts, cache TTLs, retry delays, polling intervals, and monitoring settings without mixing up milliseconds and seconds.
UTC to JST Reference: The 9-Hour Offset, Cheat Sheet & Timezone Pitfalls
Convert between UTC and JST (Japan Standard Time) with a cheat sheet. Covers what Z and +09:00 mean in ISO 8601, when JavaScript date parsing silently shifts by 9 hours, MySQL/PostgreSQL timezone behavior, and why GitHub Actions cron always runs in UTC.
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