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DATES TOOL

Add / Subtract Days from a Date

Move a calendar date forward or backward by whole days.

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  1. 01

    Add your input

    Choose a tool, enter values or select a file.

  2. 02

    Make it yours

    Adjust the options and run the action.

  3. 03

    Take the result

    Copy the result or download its file.

Date offset calculator online

Move a calendar date by a positive or negative day count. Calendar days include weekends and holidays; use Add Business Days for a workday schedule.

How to use it

Enter Date (YYYY-MM-DD) or select Try example. Review Days (+ or −). Select Run tool and inspect the result before copying or downloading.

Options and example settings

OptionChoices / valueExample default
Days (+ or −)Enter a value30

Worked examples

Move a calendar date by a positive or negative day count.

Worked example — Add / Subtract Days from a Date

Settings: Days (+ or −): 30

Input:

2026-10-10

Output:

2026-11-09

Limitations and common mistakes

  • Calendar days include weekends and holidays; use Add Business Days for a workday schedule.

Frequently asked questions

How can I add or subtract calendar days online?

Enter Date (YYYY-MM-DD) or select Try example. Review Days (+ or −). Select Run tool and inspect the result before copying or downloading.

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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