Date Calculator and Countdown

icon of calendar and time

Use these calculators to add minutes, hours, days, months, and years on to a specific date (defaults to today) or to work out the number of days, hours and minutes between two dates. You can also see a countdown of time to upcoming events.





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Whilst every effort has been made in building this date calculator, we are not to be held liable for any special, incidental, indirect or consequential damages or monetary losses of any kind arising out of or in connection with the use of the converter tools and information derived from the web site. This date calculator is here purely as a service to you, please use it at your own risk. Do not use calculations for anything where loss of life, money, property, etc could result from inaccurate conversions.

Please see the full disclaimer for more information.

Difference between two dates

Shared with our days between dates calculator, our first calculator allows you to see the number of years, months and days between two dates. If your start date is set to today, it'll also give you a countdown.

What date is it in X months/days?

To calculate the date in a set number of months, days, etc, use the Add to a date calculator:

  1. Ensure today's date is entered in the start date field.
  2. Enter a combination of years, months, days, hours or minutes to add to today's date.
  3. Click 'Calculate'.

How long until my next birthday?

This can be easily calculated with our first date calculator:

  1. Ensure that today's date is selected in the start date field.
  2. Enter the date of your next birthday in the end date field.
  3. Click on 'Calculate'.

How old am I?

You can use the first calculator to find out how old you are:

  1. Enter your date of birth in the start date field.
  2. Ensure today's date is entered in the end date field.
  3. Click on 'Calculate'.

As an alternative, you may want to consider using our age calculator.

Countdown to Christmas/Easter/Halloween

Our third date calculator allows you to see a countdown combination of years, months, days, hours and minutes to a number of different yearly events such as Christmas, Easter, Halloween and New Year's Eve. You can also enter your own information to see a countdown to your own, personal event.

If you have any problems using this date calculator, please contact me.

Featured article

The history of the calculator

Photo of abacus

From abacus to iPad, learn how the calculator came about and developed through the ages. Read our featured article.