Time conversion is essential for project planning, travel coordination, and understanding durations across different units. Our Time Converter instantly converts between seconds, minutes, hours, days, weeks, months, and years.
Time Converter
Convert between time units — seconds, minutes, hours, days, weeks, months, and years.
How the Time Converter Works
Time conversions use fixed ratios based on standard time definitions:
- 1 minute = 60 seconds
- 1 hour = 3,600 seconds
- 1 day = 86,400 seconds
- 1 week = 604,800 seconds
- 1 month = 2,592,000 seconds (30-day month)
- 1 year = 31,536,000 seconds (365-day year)
To convert 3 days to hours: 3 × 24 = 72 hours.
Frequently Asked Questions
Does the calculator account for leap years?
The year conversion uses a standard 365-day year. For precise date-to-date calculations, consider a date duration calculator.
What about months with different lengths?
Our calculator uses a 30-day month average. For calendar months with 28-31 days, results may vary slightly.
Pro Tips
- Use seconds for precise scientific calculations
- For payroll and billing, confirm whether your system uses 30-day or calendar months
- When estimating project timelines, add 20% buffer for unexpected delays