Time Calculator
Calculate the time from the exact date or add to/subtract time from another time and convert time to different units.
How to Use the Time Calculator

Enter the initial time value
To get started, enter the initial value of the time by which you need to make a calculation (days, hours, minutes, seconds). 
Enter the time value to add/subtract
Next, enter the time you want to add/subtract from the initial time (days, hours, minutes, seconds). 
Get the result
Finally сlick the «Calculate» button and get the number of days, hours, minutes or seconds of your calculation. Copy the result or link to the result if you want to share it.
How to Add Time to a Date

Enter the start date
To get started, enter the start date to which you need to add/subtract time (today's date is initially displayed). Use the calendar for more convenient date selection. 
Enter the time to add / subtract
Next, enter the time value you need to add or subtract from the start date (days, hours, minutes, seconds). 
Get the result
Finally сlick the «Calculate» button and you will receive a final date and time with some facts about this date that are easy to copy to the clipboard.
How to Calculate Time in Different Units

Enter the time you need to convert
To get started, enter the time you want to convert to different time units (months, weeks, days, hours, minutes, seconds). 
Get the result
Finally сlick the «Calculate» button and get the exact result of your time in different units. Copy copy the calculation result or link to the result if you want to share it.
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Key Features of the Time Calculator
The Time Calculator has very wide functionality and can be useful for various occasions. The first is basically calculating the time. Unlike simple mathematical addition and subtraction, it is not so easy to do when it comes to time and dates, because each unit is not decimal and can contain 60, 24 or even 365 other units, not 10 or 100 as we are used to in normal math. In two simple steps, add and subtract days, hours, minutes and seconds in any combination.
Adding or subtracting time from the current date is also not difficult. Just enter the initial parameters and the required time interval. The new date and time will be calculated immediately and presented in a convenient way.
And the last calculator, it can even be called a time units converter. With it, you can express any time unit in other units, actually in all of them at the same time. We all know how many days in a year, but what if we want to know how many seconds are in a year?
Example:
Let's imagine that you were given one week to complete the work and you need to plan a schedule. You know that the work itself will take you 38 hours 30 minutes. We will find out how much free time you will have by subtracting 38 hours and 30 minutes from 1 week. Answer: you have 5 Days 9 Hours 30 Minutes free time left.