Time Converter

Time Converter Tool

Time Converter is the Best Time Duration Converter Tool, free without app. Time Duration Convert Tool helps to management, analysis, editing, generate and convert data.

Best Time Duration Converter Tool

Convert from one unit of measurement of time to another in one click using this free web tool. You can convert from seconds, hours, minutes, days, etc with this tool.

This converter allows you to simultaneously convert a duration in several common time units like second (base unit of time in the International System of units - SI), minute, hour, day, week, month, year.
1 tropical year= 365.24149135 days = 12 months, 1 week = 7 days, 1 day = 24 hours, 1 hour = 60 minutes, 1 minute = 60 seconds, 1 second = 1000 milliseconds

Enter the duration in the second column of the following array and the conversion will be performed automatically in all other units.


  1. The period of time during which the Earth completes one rotation with respect to the Sun is called a day. It is 86400 seconds.
  2. A tropical year is the time that the Sun takes to return to the same position in the cycle of seasons, as seen from Earth, it is 365.24149135 days.
  3. As this value is nearly 365.2425 days it was decided that some civil years have 366 days every 4 years except every 100 years (1900 was not a bissextile year) except every 400 year (2000 was a leap year).
  4. Several definitions exist for a lunar month depending on the reference used.

Calculator Use

Enter the time value and units you want to convert from, then choose the time unit you want to convert to. You can convert between seconds, milliseconds, microseconds, nanoseconds, days, hours, weeks, months, and years.

Months in this time conversion calculator are calculated using the average of 30.416 days per month. This is equal to 365 days per year divided by 12 months per year. 365 ÷ 12 = 30.416 days per month.

Years in this time converter are calculated as 365 days per year. This calculator does not consider the extra day in a leap year which has 366 days per year.

How to Convert Units of Time

You can use conversion factors to convert a unit of time into another using multiplication or division. By knowing the conversion factor, converting between units can become a simple math problem:

S * C = E

Where S is the starting value, C is the conversion factor, and E is the converted result.

Conversions with Seconds

The table below contains conversion factors to convert any time value into seconds using multiplication.

Example: Convert 120 Minutes into Seconds

Multiply 120 minutes by 60 seconds per minute
120 min * 60 s/min = 7200 seconds
Example: Convert 28,800 Seconds into Hours

Multiply 28,800 seconds by 1/3600 hours per second
This is the same as dividing 28,800 seconds by 3600 seconds per hour
28,800 s ÷ 3600 s/h = 8 hours
To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into seconds then divide by the factor for B to convert out of seconds. Or you can find the simplified factor by dividing the conversion factor for A by the conversion factor for B.

To convert from minutes to hours multiply the number of minutes by 60 and then divide by 3600. Simplified, this is the same as multiplying by 60/3600 which is 0.016666667. To convert directly from minutes to hours you multiply by 0.016.

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