Home/Home/Date & Time/Add/Subtract Days

Add or Subtract Days from a Date

Add or subtract a number of days, weeks, months, or years from a given date. Find the resulting date, day of the week, and see if it lands on a weekend or bank holiday.

Discover more
Currencies & Foreign Exchange
Mobile Apps & Add-Ons
Time and Date Calculator
Time & Calendars
Calculators & Reference Tools
Mortgage
Mortgages
mortgage
Financial Calculators
calculator

Calculation

Result

Resulting Date

1 April 2026

Day of the Week

Wednesday

Working Days

2

Discover more
financial calculators
Calculators
calculators

Understanding Date Calculations

Projecting a date into the future or looking back into the past involves more than just simple arithmetic. This Calculator Site tool is designed to handle the complexities of date calculations for you. The process begins by selecting a 'Start Date', which serves as the reference point. You then choose whether to 'Add' for a future date or 'Subtract' for a past one, and specify the duration in years, months, weeks, or days.

The calculator instantly computes the new date and provides crucial context, such as the day of the week. For planning purposes, it also notifies you if the date falls on a weekend or a UK bank holiday (for England and Wales) and calculates the total number of working days in the period. For more specific date-related calculations, you might find our Working Days Calculator useful.

Pro Tip: Weekends and Holidays

A key feature of this tool is its awareness of non-working days. It automatically checks if the calculated date is a Saturday, Sunday, or a public holiday in England and Wales. This is essential for business planning, scheduling appointments, and understanding project timelines accurately.

Date Arithmetic in Detail

The underlying logic correctly manages complexities like leap years (automatically adding February 29th where appropriate) and the varying lengths of months. This ensures that calculations, whether spanning a few weeks or several decades, remain precise.

Leap Years

Handled Automatically

Bank Holidays

England & Wales Data

Precision

Down to the Day

How to use this Calculator Site tool

Simply enter a start date, choose to add or subtract time, and input the desired number of days, weeks, months, or years. The calculator provides the exact resulting date and day of the week. For related tools, check out the Date Difference Calculator or the Days Until Calculator.

Discover more
Calculators
financial calculators
calculators
Financial Calculators
calculator
Calculator

Frequently Asked Questions

We use cookies

We use cookies to ensure the website works properly and to help us understand how it is used. You can accept all cookies, reject non-essential ones, or manage your preferences. Read our Privacy Policy for full details.