Convert Time Units
Enter a value and select the source and target units.
How the Time Units Converter Works
Convert any time unit in four simple steps.
Enter a Value
Type the numeric value you want to convert. Decimals and large numbers are both supported — enter 1.5 days or 86400 seconds.
Select Source Unit
Choose the unit your value is in from the dropdown: seconds, minutes, hours, days, weeks, months, or years.
Select Target Unit
Choose the unit to convert to. The result updates instantly showing the exact equivalent value.
View All Units
Below the main result, see the value converted to every time unit simultaneously — plus a visual comparison bar.
What Is a Time Units Converter?
Understanding time unit relationships and conversion factors.
The time unit hierarchy
Time units form a hierarchy: 1 year = 12 months = 52.18 weeks = 365.25 days = 8,766 hours = 525,960 minutes = 31,557,600 seconds. Each step involves a different multiplier, making mental conversion tricky.
Conversion factors
- 1 minute = 60 seconds
- 1 hour = 60 minutes = 3,600 seconds
- 1 day = 24 hours = 1,440 minutes = 86,400 seconds
- 1 week = 7 days = 168 hours
- 1 month = 30.4375 days (average)
- 1 year = 365.25 days (accounting for leap years)
Why conversion matters
Different contexts need different units. Payroll uses decimal hours. Project management uses days or weeks. Science uses seconds. Being able to quickly convert ensures accuracy across contexts.
When to Use a Time Units Converter
Common scenarios for time unit conversions.
Scientific Research
Convert experiment durations to seconds (SI unit) for data analysis. Most scientific formulas require time in seconds for consistency.
Project Planning
Convert hours to days or weeks for Gantt charts. If a task takes 120 hours, how many 8-hour work days is that? The answer: 15 work days.
Medical & Dosing
Convert dosing intervals between hours and minutes. Drug administration schedules often switch between units depending on context.
Space & Astronomy
Convert between seconds, hours, and years for calculating orbital periods, light-travel times, or mission durations in space exploration.
Data Analysis
Standardize time data for charts and reports. Convert mixed units (some in hours, some in days) to a single unit for consistent comparison.
Sports Statistics
Convert game times between minutes and hours. How many hours is a 48-minute basketball game? Or a 5-day cricket test match?
Frequently Asked Questions
Common questions about the Time Units Converter.
There are exactly 86,400 seconds in a day. The calculation is 24 hours × 60 minutes × 60 seconds = 86,400 seconds. Enter 1 day in the converter to see all equivalent units.
Months are calculated using the average month length of 30.4375 days (365.25 days ÷ 12 months). This accounts for the varying lengths of calendar months and leap years.
Years use 365.25 days per year to account for leap years. This is the standard astronomical Julian year used in scientific calculations.
Yes. You can enter decimal values like 1.5 hours or 2.75 days. The converter calculates the exact equivalent in every other unit.
The visual bar shows the relative magnitude of your conversion. It helps you intuitively understand the scale difference between units — for example, 1 year shown as a full bar compared to 525,960 minutes.
For seconds, minutes, hours, and days, the converter is exact. For months and years, it uses standard averages (30.4375 days/month, 365.25 days/year). For precise calendar calculations, use a date calculator instead.