Simple Calendar
Calendar settings

Date Calculator

Count days between two dates, or add and subtract time from a date.

Your result

Your dates, worked out.

Enter your dates to see the result, with a breakdown of the days in between or the date you’ll land on.

Days from today

Find the date 30, 60 or 90 days from today, or choose another common interval. Each shortcut counts calendar days, including weekends and public holidays. Today uses the calculator's selected state, NSW by default.

Planning around a family date? Check the Australian Mother's Day countdown or Father's Day countdown for the next Sunday and upcoming dates.

Frequently asked questions

How do I calculate the number of days between two dates?

Open the 'Between two dates' calculator, enter your start date and end date, then click Calculate. The tool shows the total days and weeks, a calendar breakdown, weekdays and weekend days between the two dates.

How do I add or subtract days from a date?

Open the Add or subtract days calculator, choose your starting date, direction and amount, then select Calculate. You can also work in weeks, months or years, or start with a Days from today shortcut.

Does this calculator include the end date?

By default the end date is not counted — Monday to Friday is 4 days. Turn on 'Include end date' to count it too, which makes Monday to Friday 5 days.

What's the difference between business days and calendar days?

Calendar days count every day, including weekends and public holidays. Turning on 'Business days only' and picking a state excludes weekends and that state's statewide public holidays. Regional, part-day and restricted-sector holidays are not deducted.

How does adding months to a date work at month end?

Adding months clamps to the end of the target month when the original day doesn't exist there. For example, 31 January plus one month gives the last day of February, rather than rolling over into March.

What's the difference between this and the Working Days Calculator?

This Date Calculator counts all calendar days by default and can also calculate business days. The Working Days Calculator is dedicated to counting only business days, excluding weekends and state-specific public holidays.