Time Calculator

Please enter time 1 and time 2

Why use online time calculator?

Time calculator is used to check the addition or subtraction of two different time intervals. This can be used to see the age difference in terms of days, hours, minutes, and seconds. Or can be used to see the time difference of two persons to finish the same work in two different time frames. This time calculator can be very useful for many things and can be used for fun activities for kids to learn.

How to use time calculator?

This is very easy to use and simple, no need of any technical knowledge, one just need the exact values of the 2 different time intervals. Follow these steps and you will see the results.

Step 1. Enter the time interval values in the 1st input field. (Days, hours, minutes, seconds)

Step 2. Then choose the difference or additions

Step 3. Enter the 2nd time interval values in 2nd in put field. (Days, hours, minutes, seconds)

Step 4. Press calculate button to the results below.

How does this calculator work?

This calculator takes the values from input fields and see the command if the command is subtraction, it subtracts the values or if it is additions, then sum up the values and show them separately.

Below is table of time intervals and their definitions.

Very useful information

Unit	Definition
millennium	1,000 years
century	100 years
decade	10 years
year (average)	365.242 days or 12 months
common year	365 days or 12 months
leap year	366 days or 12 months
quarter	3 months
month	28-31 days
	Jan, Mar, May, Jul, Aug, Oct, Dec  - 31 days
	Apr, Jun, Sep, Nov - 30 days
	Feb - 28 days for a common year and 29 days for a leap year
week	7 days
day	24 hours or 1,440 minutes or 86,400 seconds
hour	60 minutes or 3,600 seconds
minute	60 seconds
second	base unit
millisecond	10-3 second
microsecond	10-6 second
nanosecond	10-9 second
picosecond	10-12 second