• CALCULATION
  • LOGIC
  • PLANNING
  • HUMAN

How to add calendar days to dates with your AI

Connect this MCP to your AI client to handle date math. Once connected, you just give it a start date and a number of days.

Ask AI about this page

Short answer

How do I add days to a date using AI?

Tell your AI a starting date and how many days to add. It uses the calendar_deadline_tool to calculate the exact resulting date. You'll get the final date immediately.

The outcomes

What you get

The AI handles the math and gives you the result.

CALCULATION

Accurate target dates

The AI finds the specific day you're looking for. You get a clean, accurate date without manual counting.

LOGIC

Calendar awareness

The agent accounts for month lengths and leap years. You don't have to worry about the math being wrong.

PLANNING

Set deadlines

You can turn any duration into a hard deadline. This helps you map out project timelines or notice periods.

HUMAN

Final decision

The AI provides the date, but you decide if that date works for your schedule or project needs.

The workflow

What your AI does when the request arrives.

The AI handles the logic so you don't have to count days on a calendar.

  1. Identify dates

    Your AI reads your message to find the starting date and the number of days you want to add.

    calendar_deadline_tool

  2. Compute the date

    The agent calls the tool to perform the addition, accounting for the specific month and year.

    calendar_deadline_tool

  3. Format output

    The AI takes the raw date from the tool and turns it into a readable format for your chat.

    calendar_deadline_tool

  4. Deliver result

    The AI presents the final date to you, ready for you to use in your task or schedule.

    calendar_deadline_tool

Try it

Copy these to start.

Use these prompts to trigger the calculation immediately.

Starting points

Swap out the dates and numbers in these examples with your own specific details.

Deadline Calculator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_wXHcMc6mvs6PJNtadmhUMeWcfHpR3eLXsUt2UrOD/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Deadline Calculator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "deadline-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_wXHcMc6mvs6PJNtadmhUMeWcfHpR3eLXsUt2UrOD/mcp"
    }
  }
}
Copy into chat04

  • Add 45 days to October 12, 2024.

  • What is the date 14 days after today?

  • Calculate a deadline that is 90 days from January 1st, 2025.

  • If a contract starts on June 15th, what is the date 30 days later?

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect Deadline Calculator once, then ask.

One click connects this MCP to your AI client. Your credentials stay encrypted, and you can start asking for date math right away.

Connect Deadline Calculator to your AI

FAQ

How this task behaves

  • 01

    Can the AI subtract days instead of adding them?

    No. This tool is designed to add a number of days to a start date.

  • 02

    Does the AI know if a date falls on a weekend?

    The tool calculates the calendar date, but it does not automatically adjust for weekends or holidays unless you specifically ask it to.

  • 03

    Will the AI change my original calendar?

    No. The AI only calculates the new date in your chat. It cannot access or modify your personal Google or Outlook calendars.

  • 04

    Can I use this with Claude?

    Yes, any MCP-compatible client like Claude can use this once you connect it through Vinkius.

  • 05

    Does it handle leap years?

    Yes, the tool handles the math for leap years automatically.

  • More questions about Deadline Calculator? The Connector page answers them. See everything the Deadline Calculator Connector can do

Connect Deadline Calculator to Claude, Cursor, ChatGPT & more