Time Calculator
What is Time Calculator?
This free online time calculator is made to check the difference or addition of the two given time stances. You can check the results for days, hours, minutes, and seconds.
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 
2831 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 
103 second 
microsecond 
106 second 
nanosecond 
109 second 
picosecond 
1012 second 