
Connect Days Between Dates Calculator to ChatGPT and Claude
Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Get exact date intervals and business day counts through your AI client.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Your AI does the work. We keep it safe and sound.
No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.
Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

Each Connector runs inside its own sealed environment.
Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.
One switch stops every agent. Instantly.
One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.
Spending limits that pause instead of surprise.
Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.
Three controls, built into the layer your AI connects through.
Curated set · 3 capabilities
We ship only the actions that matter.
01-03
3 capabilities in this set.
Part of 3 available through Days Between Dates.
- 01
Verify holiday status
This capability checks if a specific date is a recognized national holiday in a chosen region. It helps your agent confirm if a day is a non-working holiday in the USA or Europe.
- 02
Count business days
This capability calculates the total number of working days between two dates. You can tell your agent to exclude holidays in specific regions to get a true count of available workdays.
- 03
Get date breakdown
This capability provides a granular breakdown of the time elapsed between two dates. It returns the exact count of years, months, weeks, and days.
Real work
What teams actually run
Project Timeline Planning
Your agent calculates the exact number of working days between a project start and end date.
Payroll and Attendance
Use the business day capability to determine how many days an employee worked in a specific period.
Contract Deadlines
The agent verifies if a deadline falls on a holiday or a weekend.
Age and Tenure Tracking
Get a precise breakdown of years, months, and days for tenure or age calculations.
Automate a task
Put Days Between Dates to work on one thing.
Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.
One connector, every AI
Days Between Dates works with the most popular AI clients.
These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.
Claude
ChatGPT
Gemini
Perplexity
Grok
Microsoft Copilot
Cursor
VS Code
Windsurf
JetBrains
Cline
LangChain
Vercel AI SDK
Lovable
Z.ai
Raycast
Qwen Code
Kimi Code
Le ChatBuilding your own app? The connector is yours to use.
You don't need a client to put Days Between Dates to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.
Observed, not estimated
701ms average. Fast in production.
Days Between Dates is checked daily against the live service.
- Fastest day
- 528ms
- Slowest day
- 937ms
- 14-day trend
- Slowing+24%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Days Between Dates, so you can see the experience inside your AI.
It does not authenticate your account with Days Between Dates. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Days Between Dates Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_GOWFQtcoLamIae4dpZXHepvRCma9btXbfRUrBXl8/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — Days Between Dates capabilities are ready to use.
{
"mcpServers": {
"days-between-dates-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_GOWFQtcoLamIae4dpZXHepvRCma9btXbfRUrBXl8/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
Guided setup for Claude? Set up Days Between Dates in Claude and other AIs
Who it's for
Built for the work Days Between Dates owners hand off.
This MCP is built for anyone who needs to automate time-based logic within their AI workflows.
- 01
Project Managers
They hand off timeline calculations and deadline tracking to their agent.
- 02
Operations Specialists
They use the agent to calculate working days and manage regional holiday schedules.
- 03
Software Developers
They integrate these date math capabilities into their coding workflows via an MCP-compatible client.
FAQ
Questions Days Between Dates owners ask.
- 01
How do I use this MCP with Claude?
You connect to the Vinkius-hosted MCP once, and then your Claude client can immediately use the date capabilities through the Model Context Protocol.
- 02
Does it support European holidays?
Yes, the capability can check for national holidays in both the USA and Europe.
- 03
Can I exclude weekends from my day count?
Yes, the count_business_days capability is designed to calculate working days specifically.
- 04
What kind of date breakdown can I get?
The get_date_breakdown capability provides a detailed count of years, months, weeks, and days.
- 05
Do I need to host the MCP myself?
No, Vinkius hosts and manages the MCP for you, so it is ready to use as soon as you connect.
- 06
How do I calculate business days excluding holidays?
Use the count_business_days capability and set the excludeHolidays parameter to true.
- 07
Which regions are supported for holiday lookups?
The server currently supports holiday registries for the USA and Europe.
- 08
Can I get a breakdown of weeks and days?
Yes, the get_date_breakdown capability provides a full breakdown including years, months, weeks, and remaining days.
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Connect Days Between Dates to Claude, Cursor, ChatGPT & more
