Add or subtract days

Find a date a number of days away.

How to use Add or subtract days

Enter a date and a whole number of days. Negative offsets move backwards; leap years and month boundaries are handled using calendar dates.

Add or Subtract Days from a Date

Use this free date calculator to find a date in the future or the past. Choose a starting date, add or subtract a number of days, and view the resulting date instantly.

It is useful for planning deadlines, bookings, school schedules, leave periods, project timelines and personal events.

How to use the date calculator

1. Select the starting date.
2. Enter the number of days you want to add or subtract.
3. Choose whether to add days or subtract days.
4. Calculate the new date.
5. Review the result.

For example, if today is 1 March and you add 30 days, the calculator will show the date 30 days later.

Common ways to use this tool

You can use the calculator to:

• find a deadline after a set number of days;
• work out a date before an event;
• plan a study schedule;
• calculate a return date for travel or leave;
• check the date after a delivery or notice period.

If only working days should count, use the Business Days Calculator instead. This tool counts calendar days, including weekends.

Example

If an application is due 14 days after 10 May, select 10 May as the start date and add 14 days. The calculator will show the expected due date.

Always check the relevant policy or notice if a formal deadline has special rules about weekends, public holidays or the day of issue.

FAQs

Can I subtract days from a date?

Yes. Choose the subtract option and enter the number of days you want to go back.

Does the tool count weekends?

Yes. It uses calendar days, so weekends are included.

Can I use it for dates in another year?

Yes. The calculator works across months and years.

What is the difference between this and Days Between Dates?

Days Between Dates tells you how many days lie between two selected dates. This tool starts with one date and finds the resulting date after adding or subtracting days.

Can I use it for business deadlines?

You can use it for planning, but use the Business Days Calculator if weekends and holidays should be excluded.

Related tools

• Days Between Dates
• Business Days Calculator
• Date Countdown
• Printable Calendar
• Age Calculator