Time Unit Converter
Effortlessly switch between any time units. Our tool provides instant and accurate conversions for your needs.
Fast, Free, Private Time Unit Converter (Offline)
Convert time units instantly ns, µs, ms, s, min, h, d, wk, mo (avg), and yr (avg). 100% client side, lifetime free, unlimited use. No uploads, no sign ups, truly private.
Top, fast, best in class, and unlimited. Your information is 100% confidential and secure.
Why people love this time converter
Offline & secure
Runs entirely in your browser. Your values never leave your device.
Unlimited & free forever
No accounts, no limits convert as much as you want.
Fast & simple
Pick units, type a value, get results instantly with clear precision.
Works everywhere
Modern browsers on Windows, Mac, Linux, and mobile devices.
No data collected
100% client-side processing keeps your data private.
Accurate results
Reliable conversion factors with smart rounding for readability.
Popular uses worldwide
Scheduling & project timelines
Convert hours to days, weeks, or months for planning and reporting.
Software & engineering
Switch between ms, s, and min for timeouts, benchmarks, and simulations.
Education & learning
Understand time units from nanoseconds to centuries with quick conversions.
Research & analysis
Normalize time data across datasets and publications.
Media & content
Convert durations for podcasts, videos, and broadcast schedules.
Everyday life
Quickly convert minutes to hours, days to weeks, and more.
How to convert time units
- Select your “From” unit (e.g., hours).
- Enter a value (e.g., 48).
- Select your “To” unit (e.g., days).
- See instant results and the 1 unit summary below.
- Use “Reset” to start again.
Tip: Edit either side both fields update automatically. Months/years use average values for consistency.
Supported units
Best practices
- Always confirm target units before sharing or publishing time values.
- Use average values for months/years unless a specific calendar is required.
- Round at the end of multi step calculations to avoid compounding errors.
- Keep original values for auditing and reproducibility.
Frequently Asked Questions
Is it private and secure?
Yes. Everything runs locally in your browser no uploads, no tracking, no servers.
Is it really free and unlimited?
Yes. Lifetime free, unlimited conversions, and no sign ups.
Which units are supported?
ns, µs, ms, s, min, h, d, wk, month (avg), year (avg), decade, century.
Does it work offline?
Yes. Your browser can cache assets after the first visit and run offline.
How accurate are results?
We use precise factors and average values for months/years with smart rounding for readability.
Can I use it on mobile?
Absolutely. It works on modern mobile and desktop browsers.
Global availability (GEO)
Built for users worldwide: USA, UK, Canada, Australia, India, EU (Germany, France, Spain, Italy, Netherlands), Middle East (UAE, Saudi Arabia), Asia (Singapore, Malaysia, Philippines, Indonesia, Japan, South Korea), Africa (Nigeria, South Africa, Egypt), and Latin America (Brazil, Mexico, Argentina).
Also searched as: time unit converter, time converter online, seconds to minutes, minutes to hours, hours to days, days to weeks, weeks to months, months to years, ms to s, s to ms, µs to ms, time calculator, duration converter.
Multilingual: convertidor de tiempo (ES), convertisseur de temps (FR), Zeiteinheiten umrechnen / Zeitrechner (DE), convertitore di tempo (IT), conversor de tempo (PT), конвертер времени (RU), 時間換算 (JA), 时间换算 (ZH), 시간 변환기 (KO), zaman dönüştürücü (TR), konwerter czasu (PL), tijd omrekenen / tijdconverter (NL), chuyển đổi thời gian (VI), konverter waktu (ID), ตัวแปลงเวลา (TH), محول الوقت (AR), समय कनवर्टर (HI).
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