Date Calculator Online

Date calculator allows you to add or subtract time duration from any date. Also, it calculates how many days between two dates online.

Add to or Subtract From a Date

Select Date

Days Between Two Dates

Choose First Date
Choose Second Date

What is Date Calculator?

Date Calculator is an online tool that makes your date and time calculation very easier as well as fast. Simply fill in the date, time duration, and choose whether to add or subtract. Even more, you can check how many days between the two dates too. It takes less than a second to show results.

Date Calculator | How many Days Between two Dates?
Add or Subtract Time Duration from the Date

Have you ever stuck to adding or subtracting time from a date? Also, it's easy to do calculations for one day, week, or even month. What about if you encounter situations like this: What is the exact date after 45 days from the 1st August 1993? A genius might say the answer after thinking for a few seconds. But is he or she is absolutely correct? Maybe yes or no.

Also, it is the case of genius. What about us who don't want to waste time on these things. Do you know? We are super geniuses! Because without wasting any further time we just switch on the Internet on our handy device and use the Date Calculator.

Select the date and enter the duration that is 45 days in our case. Also, we want to find the date after 45 days. Hence, we will select an "+ Add" from dropdown. Lastly, press "Calculate". As a result, we get the resultant date: 15th September 1993, and the day is Wednesday.

Simple, fast, and accurate. Now, tell me who is more genius and smart?

Days Between Two Dates

Do you want to find out how old are you? or Do you wish to know the time duration between the two dates? Our Days Calculator easily counts it within seconds. Whether the date may be from the past or future. It doesn't matter. It just takes two inputs from the user side. Start date and End date. That's it. Also, it gives you output in years, months, days, hours, and even seconds.

Features of Date Calculator

There are a lot of magnificent features that make this web application the most recommended. Here are some of the major features.

  • Simple to Use: The user experience is very simplified in order to make the process a piece of cake. Just a fill some values and click "Calculate". That's it.
  • Super Fast Results: Our calculator gives results in less than a second. Therefore, it's a hundred times faster than manual calculation. Also, we don't find any reason to lift the pen and paper to do the manual calculation when you have this awesome tool.
  • 100% Accurate: Humans can make mistakes, but this tool doesn't. Because it is developed with pre-defined algorithms. Every time it goes through the same mechanism. So, you can't expect it to produce the wrong output.
  • Multiple Operations: You can add or subtract time duration, and find days between two dates. Therefore, it's a one-stop solution to do all the things related to date and time.
  • Supports All Devices: Date Calculator works smoothly on almost all small and large devices. Because we have designed it mobile and iPad friendly. So, you can access it anytime and anywhere on any device.

How to use Date Calculator?

As you can see, there are two calculators at the top of the page. Both are used for different purposes.

If you want to add or subtract any time duration from the date then you can use the first or left one. Whereas the second or right one is used to figure out how many days between two dates.

Date and Time Duration Calculator

The usage process is very much similar for both of the calculators. Follow the steps below to get started.

  • Firstly, choose the date using the date picker or you can enter it manually. Also, the "Today" button will take the today's date automatically.
  • Then select "+ Add" or "- Subtract" operation from the dropdown.
  • Enter time duration in years, months, weeks, and days. It's not necessary to enter all 4 values. You can enter any one or more(i.e. only years, months and days, only weeks).
  • Lastly, press the "Calculate" button.
  • As a result, you will get the Date with added or subtracted time duration. Also, it gives the day of the week on that particular date.
  • "Reset" button will make all the values empty. So, it will refresh the tool and you can restart the new calculation.

Similarly, you can follow the same steps to go through another calculator. As a result, you will get time duration in years, months, and days. Even more, it gives total days, hours, and seconds too.

Efficient and Productive Uses

If used efficiently and productively, this simple calculator can be very much valuable and advantageous for you. Let's look over some examples in which you can get benefits of Date Calculator.

1. Exam Preparation

Our Calculator can be very handy for the students preparing for exams. Easily find the days left in your hand. This will help you in making your strategies. Even more, you can do proper planning using this app and execute them to get better exam results.

2. EMI and Rent Management

From now you'll never miss your EMI or rent. Because it will help you to calculate the date of the next payment beforehand. This way you will have an idea about the next EMI date. This is a great way to save yourself from last-minute hurdles. Consequently, it will also help to terminate extra charges.

3. Medical Assistance

Use this tool as a medicine or health planner. Even more, it helps you to find an exact duration between two dates within seconds. Therefore, it can help you to plan your health check-ups and medicine.

4. Business Management

This simple and light-weight calculator can give a big contribution to your business. Every businessman knows that there's a huge importance of dates. Schedule your meetings, salaries, events, and much more using our online web application. Accuracy is the key here. You can't take the risk of scheduling on the wrong dates. So, it is highly recommended to use this tool for business management.

5. Personal Life

I don't have a business, nor I take any medicine, nor I am preparing for exams, and not even I have to pay any sort of rent. So, is this calculator useful for me? Absolutely yes. There can't be a situation in which you don't need to do some kind of date calculation. Like to count the days remaining on your mom's birthday or for your next anniversary. Similarly, you may encounter any situation that requires you to calculate days between dates.


Till now, you have known all the things about the Date Calculator and how to use it. Even more, we have discussed its advantages and features. Above all things altogether makes our tool the best online resource. Furthermore, it's absolutely free and easy to use. No usage charges or limits. Just open it and start using it.