• CALENDAR
  • SLA
  • LOGIC
  • HUMAN

How to calculate business day deadlines with your AI

Connect this MCP to your AI client to handle date math that ignores weekends. It turns a simple duration into a specific calendar date.

Ask AI about this page

Short answer

How do I calculate business day deadlines with my AI?

Tell your AI how many business days to add to a start date. The engine automatically skips Saturdays and Sundays to give you the correct deadline. You'll see the exact results in the breakdown below.

The outcomes.

Where your results land.

Once you provide a start date and a duration, your AI delivers these results.

CALENDAR

Exact due dates

The AI finds the specific calendar date for your deadline. You get a single, usable date instead of a rough estimate.

SLA

Compliance tracking

Use this to check if a project is still within its service level agreement. The AI calculates the window based on working days only.

LOGIC

Weekend avoidance

The engine handles the heavy lifting of skipping non-working days. You don't have to manually check if a deadline falls on a Sunday.

HUMAN

Manual verification

You decide if specific company holidays should also be skipped. The AI only handles the standard weekend logic automatically.

The workflow

What your AI does when a date request arrives.

The AI moves from your natural language prompt to a precise date calculation.

  1. Parse the request

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

    add_business_days

  2. Calculate the date

    The agent calls the engine to jump forward through the calendar while skipping weekends.

    add_business_days

  3. Format the output

    The AI converts the raw calculation into a readable date format for your chat interface.

    add_business_days

  4. Confirm the deadline

    The AI presents the final date to you for your final review or to use in a task manager.

    add_business_days

Try it

Copy these to start.

Paste these into your chat to begin calculating.

Starting points

Swap out the bracketed info with your actual project dates or durations.

Deterministic Datetime Engine Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_vEhbg6uTTW1p8gyIoIpVlcSHsqKC4FlupxGbhPUS/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 — Deterministic Datetime Engine capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "deterministic-datetime-engine-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_vEhbg6uTTW1p8gyIoIpVlcSHsqKC4FlupxGbhPUS/mcp"
    }
  }
}
Copy into chat04

  • If today is October 12th, what is the deadline if I add 5 business days?

  • Calculate a deadline 10 business days from next Monday.

  • I have a project starting on June 1st. When is it due if I have a 15-business-day turnaround?

  • Add 3 business days to the date in this spreadsheet cell.

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

Start here

Connect Deterministic Datetime Engine once, then ask.

One click connects this MCP to your preferred client. Your credentials stay encrypted and secure on our side.

Connect Deterministic Datetime Engine to your AI

FAQ

How this task behaves.

  • 01

    Does the AI skip holidays?

    No. The tool specifically skips weekends. You must tell the AI to account for holidays manually if they are part of your calculation.

  • 02

    Can the AI change my calendar events?

    No. This MCP only performs date math. It cannot write to, delete, or modify your Google or Outlook calendars.

  • 03

    Can I use this with Claude?

    Yes, as long as you are using an MCP-compatible client like Claude Desktop.

  • 04

    Does it work with time zones?

    The engine calculates days. It does not adjust for specific time zone offsets unless you include that context in your prompt.

  • 05

    Can the AI create a new calendar invite?

    No. The tool is limited to calculating the date. Creating an invite requires a different MCP with calendar write permissions.

  • More questions about Deterministic Datetime Engine? The Connector page answers them. See everything the Deterministic Datetime Engine Connector can do

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