Date calculator
Days between dates calculator
How many days are there between two dates — or since a date, or until one? Pick both dates and the answer appears instantly in days, weeks, months, weekdays and hours. The link updates as you go, so you can bookmark or share the exact result.
Add or subtract days from a date
What date is 90 days from today? 30 days ago? Pick a date and a number.
Counting to a holiday instead?
For a live timer that ticks down to the second, open one of the 97 holiday and event countdowns, or make a countdown to your own date. Working out an age? Try the age calculator and birthday countdown.
Questions
How do I count the days between two dates?
Enter a start date and an end date above. The calculator subtracts one from the other and shows the result in days, weeks, months, weekdays and hours. By default the end date is not counted, the same way you would count nights in a hotel.
Should I include the end date?
Tick “Include the end date” when both days count, such as the length of a holiday from the first day to the last or a project that runs Monday to Friday inclusive. It adds one day to the total.
How many days since a date?
Put the past date as the start date and today as the end date. The calculator shows how many days, weeks and months have passed since then.
How are weekdays counted?
Weekdays are Monday to Friday. Public holidays are not removed, because they differ by country and region, so subtract any that apply to you.
What date is 90 days from today?
Use the add or subtract tool on this page: today is filled in, so type 90 and the result appears straight away. It works for any number of days forward or back.
Does this calculator account for leap years?
Yes. It counts real calendar days, so 29 February is included whenever it falls inside the range.