Time Converter
Convert between seconds, minutes, hours, days, weeks, months and years. Fast time unit conversion.
Common conversions
1 Hour =
60
Minute
1 Hour in all units
How to Use
- 1
Enter a value
Type the time duration you want to convert.
- 2
Select input unit
Choose from seconds, minutes, hours, days, weeks, and more.
- 3
See all results
All equivalent time durations update instantly.
How It Works
This tool converts between seconds, minutes, hours, days, weeks, months, and years — useful whenever you need to move between very different time scales quickly, like converting a project duration in days into weeks and months.
Why months and years are approximations
Seconds through weeks convert with exact fixed ratios (60 seconds/minute, 24 hours/day, 7 days/week). Months and years don't have a single exact length in days — a month can be 28-31 days, and a year is 365 or 366 days depending on leap years — so this tool uses standard averages (30.44 days/month, 365.25 days/year) for those conversions, which is the conventional approach for approximate duration math.
Examples
Project duration
A 90-day project: 90 ÷ 7 ≈ 12.9 weeks, or roughly 2.96 months using the 30.44-day average.
Age-related conversion
10,000 hours: 10,000 ÷ 24 ≈ 416.7 days, or about 1.14 years.
Common Use Cases
- Converting project timelines or deadlines between days, weeks, and months
- Quick unit conversions for time-based calculations in scripts, spreadsheets, or reports
- Estimating durations described in one unit (e.g. hours) in another (e.g. days) for planning purposes
Tips
- For anything requiring an exact calendar date (like a subscription renewal or legal deadline), use the Date Difference Calculator instead — it works with actual calendar dates rather than average unit lengths, and will be more precise for month/year spans.
- When precision matters at the day level, remember month and year conversions here are averages, not exact — a specific calendar month could be 28 to 31 days, not always 30.44.
Frequently Asked Questions
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