CalcVind

Date Calculator

Days between dates, or add and subtract days

What do you want to do?

Start date
End date

Days Between

100Days
14w 2dWeeks
70Working days
0y 3m 8d
Years, months, days
3.3
Total months
2,400
Total hours
30
Weekend days
Between
Saturday, 10 October 2026 and Monday, 18 January 2027
  1. 1
    Pick a calculation
    Days between, or add/subtract
  2. 2
    Enter the dates
    Or the days, weeks and months
  3. 3
    Get the answer
    Days, working days or the new date

How are the days counted?

We count calendar days from the start date up to the end date. The start day isn't counted unless you choose to include the end date, which adds one day.

Days between = end date − start date

Working days = days that fall Monday to Friday

Adding months

Adding a month keeps the same day number where possible. If the month is shorter, the result moves to its last day: 31 January + 1 month = 28 February (29 in a leap year).

Working days and holidays

Working days here are Monday to Friday. Public holidays aren't removed because they differ by state and company, so subtract any that fall in your range.

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Frequently asked questions

How many days are there between two dates?

Enter both dates under “Days between two dates”. You'll get the total days, the weeks and days, and the working days.

What date is 90 days from today?

Choose “Add to or subtract from a date”, keep today as the start date and enter 90 days.

Should I include the end date?

For things like hotel nights or loan days, don't include it. For counting days of an event that runs from the start date to the end date inclusive, include it.

Last reviewed: October 2026