Use this free online Time Units Converter to instantly convert between various time units including milliseconds, seconds, minutes, hours, days, weeks, years, and business days. Whether you’re managing a schedule, calculating deadlines, or just curious, this tool offers accurate, real-time conversions with zero hassle.
Time Units Converter
Supported Time Units
- Milliseconds
- Seconds
- Minutes
- Hours
- Days
- Weeks
- Business Days (Mon–Fri)
- Years (365.25 days)
Why Use Our Time Conversion Tool?
This tool is designed for speed and simplicity. It’s ideal for project managers, developers, students, and anyone who needs precise time calculations. No ads, no fluff—just instant conversions.
How It Works
Enter a value in any time unit field, and the rest will automatically update. Our converter uses standard time formulas, including an approximation for business days based on a 5-day workweek.
Business Days Conversion
Unlike regular days, business days exclude weekends. We use an average ratio of 5 weekdays to 7 total days, so 1 business day ≈ 0.714 calendar days. For exact scheduling with holidays, consider a calendar-based calculator.
Frequently Asked Questions
What is a business day?
A business day typically refers to a weekday (Monday through Friday), excluding weekends and holidays.
How many seconds are in a year?
There are approximately 31,557,600 seconds in a year (365.25 days × 24 hours × 60 minutes × 60 seconds).
Can I convert time to milliseconds?
Yes! Enter your value in any unit, and milliseconds will be calculated automatically. Great for programmers and technical users.
Is this time converter free?
Absolutely. It’s 100% free and runs entirely in your browser without collecting any data.