Time Unit Converter
Convert durations across milliseconds, seconds, minutes, hours, days, weeks, months, and years. Results update instantly and include practical context so values are easier to interpret.
Common Time Conversions
Quick reference for frequently needed time equivalents:
Time Unit Reference Table
| Unit | Equivalent | In Seconds |
|---|---|---|
| 1 Millisecond | 0.001 seconds | 0.001 |
| 1 Second | 1,000 milliseconds | 1 |
| 1 Minute | 60 seconds | 60 |
| 1 Hour | 60 minutes | 3,600 |
| 1 Day | 24 hours | 86,400 |
| 1 Week | 7 days | 604,800 |
| 1 Month (avg) | 30.437 days | 2,629,746 |
| 1 Year | 365.25 days | 31,556,952 |
How to Convert Time Units
Basic Conversion Formulas
Time conversion uses simple multiplication or division:
- To a smaller unit: Multiply by the conversion factor
- To a larger unit: Divide by the conversion factor
Examples
Convert 2.5 hours to minutes:
Convert 7,200 seconds to hours:
Convert 45 minutes to decimal hours:
When You Need Time Conversions
- Project management: Converting task durations for scheduling
- Payroll: Converting hours and minutes to decimal hours for payment
- Cooking: Adjusting recipe times
- Fitness: Tracking workout durations and pace
- Travel: Calculating journey times across different formats
- Programming: Converting between milliseconds and human-readable time
Frequently Asked Questions
Privacy & Limitations
- All calculations run entirely in your browser -- nothing is sent to any server.
- Results are computed using standard formulas and should be verified for critical applications.
Related Tools
- Hectares to Acres -- hectares to acres converter. Enter hectares to get acres instantly
- Length Converter -- Convert between metric and imperial length units
- Pressure Converter -- Convert between bar, psi, and pascal
- Area Converter -- Convert between square meters and square feet
Related Tools
View all toolsCooking Measurement Converter
cooking measurement converter. Convert between teaspoons, tablespoons, cups, milliliters, liters, and fluid ounces
Liquid Measurement Converter
Convert between ml, liters, fluid ounces (US & UK), cups, pints, quarts, gallons, tablespoons, and teaspoons
Ounces to Grams Converter
Convert between ounces and grams with real-time conversion, presets, and reference table
Hectares to Acres
hectares to acres converter. Enter hectares to get acres instantly
Weight & Mass Converter
Convert between metric and imperial weight units
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin
Time Converter FAQ
How many seconds are in a minute?
There are 60 seconds in one minute. This is a universal standard used in timekeeping worldwide.
How many minutes are in an hour?
There are 60 minutes in one hour. Combined with 60 seconds per minute, this means one hour equals 3,600 seconds.
How many hours are in a day?
There are 24 hours in one day. A day is defined as one complete rotation of Earth on its axis.
How many days are in a week?
There are 7 days in one week. This equals 168 hours or 10,080 minutes.
How many seconds are in a day?
There are 86,400 seconds in one day (24 hours × 60 minutes × 60 seconds).
How many days are in a year?
A standard year has 365 days. A leap year has 366 days. For calculations, an average year (accounting for leap years) is approximately 365.25 days.
How do I convert hours to minutes?
Multiply the number of hours by 60. For example: 2.5 hours × 60 = 150 minutes.
How do I convert days to hours?
Multiply the number of days by 24. For example: 3 days × 24 = 72 hours.
What is a millisecond?
A millisecond is one thousandth of a second (1/1000 or 0.001 seconds). It is commonly used in computing, sports timing, and scientific measurements.
How many weeks are in a month?
On average, there are approximately 4.33 weeks in a month (52 weeks ÷ 12 months). However, most months have between 4 and 5 weeks depending on the number of days.