Time Unit Converter
Time Unit Converter translates fixed durations using 60 seconds per minute, 60 minutes per hour, 24 hours per day, and 7 days per week. These are duration units, not calendar arithmetic. Months, years, daylight-saving transitions, leap seconds, work schedules, and timezones are intentionally absent.
Runs locally — files stay on your deviceHow many seconds are in one week here?
604,800 seconds: 7 × 24 × 60 × 60.
Fixed duration differs from a civil-calendar interval
The calculator defines a day as exactly 86,400 seconds and a week as 604,800 seconds. A local calendar day across a daylight-saving transition can represent a different elapsed duration.
How it works
The input is normalized to seconds and divided by the destination factor.
Key concepts
Duration is context-free
A fixed 24-hour day does not consult a timezone.
Calendar time has variable rules
Months vary and civil clocks can shift.
When to use it
- Convert timer durations.
- Translate hours into seconds.
- Compare fixed week and day intervals.
When not to use it
- Do not use it to add calendar months or years.
- Do not infer local-clock behavior across daylight-saving transitions.
- Do not count business time or leap seconds.
Worked examples
Hours to seconds
- Input
2 h- Expected output
7200 seconds
2 × 3600.
Days to hours
- Input
1.5 days- Expected output
36 hours
The day is fixed at 24 hours.
Week
- Input
1 week- Expected output
604800 seconds
Seven fixed days are used.
Common mistakes
Using days for calendar deadlines
Civil and legal rules can differ. Correction: Use a date calculator with the applicable policy.
Assuming a month is four weeks
Four weeks is 28 days. Correction: Treat months as calendar units.
Applying timezone offsets
No timezone is represented. Correction: Use timezone-aware date-time software.
Best practices
- Call the result a duration.
- Use calendar tools for dates.
- Specify whether a day means 24 hours or a civil date.
Related operations and differences
Area Converter
Choose Area Converter when you need to convert common metric and imperial areas.; use Time Unit Converter specifically for convert.
Data Storage Converter
Choose Data Storage Converter when you need to convert decimal and binary storage units.; use Time Unit Converter specifically for convert.
Energy Converter
Choose Energy Converter when you need to convert joules, calories and watt-hours.; use Time Unit Converter specifically for convert.
Fuel Economy Converter
Choose Fuel Economy Converter when you need to convert MPG, L/100 km and km/L.; use Time Unit Converter specifically for convert.
Length Converter
Choose Length Converter when you need to convert metric and imperial length units.; use Time Unit Converter specifically for convert.
Power Converter
Choose Power Converter when you need to convert watts, kilowatts and horsepower.; use Time Unit Converter specifically for convert.
Limitations and privacy
- No months, years, milliseconds, leap seconds, business time, or timezones.
- Day is fixed at 86,400 seconds.
- Floating-point rounding applies.
Values are converted locally in this browser and are not uploaded.
Frequently asked questions
How many seconds are in a day?
86,400 in this fixed-duration model.
Are months supported?
No.
Does daylight saving affect the result?
No.
Is one week exactly seven days?
Yes in this converter.