datetime-ops Connector for AI agents.
3 live capabilities
Get mathematically accurate calendar math and business day calculations.
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Why people use datetime-ops
Deterministic Datetime Engine for Accurate SLA Calculations
With this Connector, you just tell your agent the starting date and the number of days. It handles the calendar logic in the background and gives you the exact answer. You get your deadline instantly without opening a single spreadsheet.
What Vinkius changes
Your AI gets perfect calendar math without the guesswork.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 6,100+ Connectors
- Real-world use case 01
Calculating project deadlines
A project manager needs to know a deadline 30 business days out.
- Real-world use case 02
Verifying contract durations
A billing clerk needs to know how many months a contract has been active.
- Real-world use case 03
Checking leap year status
A developer is checking if a specific year needs a 366-day calculation.
Complete set · 3capabilities
The complete datetime-ops capability set.
These are the exact actions your AI can choose when you ask it to work with datetime-ops.
01—03
3 capabilities in this set.
Part of 3 available through datetime-ops.
- 01 Capability
Add business days
Adds or subtracts days from a date while skipping weekends. This is perfect for finding deadlines that don't fall on a Saturday or Sunday.
- 02 Capability
Calculate date difference
Returns the exact number of days, months, and years between two dates. It replaces manual counting with a precise mathematical total.
- 03 Capability
Check leap year
Verifies if a specific year is a leap year using the Gregorian algorithm. It ensures your year-long calculations don't miss a day.
Set up in minutes
One URL. Then ask datetime-ops to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use datetime-ops from the conversation.
Choose your client
Live previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_vEhbg6uTTW1p8gyIoIpVlcSHsqKC4FlupxGbhPUS/mcp - Step 01
Open Connectors
In Claude Web or Claude Desktop, open Settings and choose Connectors.
- Step 02
Add the URL
Choose Add custom connector, name it datetime-ops, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable datetime-ops for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_vEhbg6uTTW1p8gyIoIpVlcSHsqKC4FlupxGbhPUS/mcp - Step 01
Open MCP settings
On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
- Step 02
Add the URL
Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the datetime-ops URL.
- Step 03
Save and start
Save the connection and enable datetime-ops in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"deterministic-datetime-engine": {
"url": "https://edge.vinkius.com/vk_preview_vEhbg6uTTW1p8gyIoIpVlcSHsqKC4FlupxGbhPUS/mcp"
}
}
}- Step 01
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
- Step 02
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
- Step 03
Save the file
Cursor will automatically detect the new Connector
- Step 04
Start using datetime-ops
Open Agent mode in chat and ask: "Using datetime-ops, help me...". 3 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"deterministic-datetime-engine": {
"url": "https://edge.vinkius.com/vk_preview_vEhbg6uTTW1p8gyIoIpVlcSHsqKC4FlupxGbhPUS/mcp"
}
}
}- Step 01
Create MCP config
Create a .vscode/mcp.json file in your project root
- Step 02
Add the server config
Paste the JSON configuration above
- Step 03
Enable Agent mode
Open GitHub Copilot Chat and switch to Agent mode using the dropdown
- Step 04
Start using datetime-ops
Ask Copilot: "Using datetime-ops, help me...". 3 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"deterministic-datetime-engine": {
"url": "https://edge.vinkius.com/vk_preview_vEhbg6uTTW1p8gyIoIpVlcSHsqKC4FlupxGbhPUS/mcp"
}
}
}- Step 01
Open MCP Settings
Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
- Step 02
Add the server
Paste the JSON configuration above into mcp_config.json
- Step 03
Save and reload
Windsurf will detect the new server automatically
- Step 04
Start using datetime-ops
Open Cascade and ask: "Using datetime-ops, help me...". 3 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"deterministic-datetime-engine": {
"url": "https://edge.vinkius.com/vk_preview_vEhbg6uTTW1p8gyIoIpVlcSHsqKC4FlupxGbhPUS/mcp"
}
}
}- Step 01
Open Cline MCP Settings
Click the Connectors icon in the Cline sidebar panel
- Step 02
Add remote server
Click "Add Connector" and paste the configuration above
- Step 03
Enable the server
Toggle the server switch to ON
- Step 04
Start using datetime-ops
Ask Cline: "Using datetime-ops, help me...". 3 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add deterministic-datetime-engine --transport http "https://edge.vinkius.com/vk_preview_vEhbg6uTTW1p8gyIoIpVlcSHsqKC4FlupxGbhPUS/mcp"- Step 01
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
- Step 02
Add the Connector
Run the command above in your terminal
- Step 03
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
- Step 04
Start using datetime-ops
Ask Claude: "Using datetime-ops, show me...". 3 tools are ready
Where the request belongs
Work datetime-ops can move forward.
Project managers who need to calculate deadlines, billing specialists tracking invoice cycles, and developers building calendar-dependent apps.
Project Manager
They use this to calculate project milestones and SLA dates that skip weekends.
Billing Specialist
They use this to determine payment windows and late fees for annual contracts.
Operations Lead
They use this to map out delivery schedules across different months and years.
Build the capability set
Add more capabilities.
Each Connector adds new actions and data without changing how you work.
Browse ConnectorsDate Utils Engine
Stop AI from hallucinating dates, missing leap years, or failing timezone conversions. Offloads all calendar math to the deterministic date-fns engine.
Days Between Dates Calculator
Calculate precise intervals between two dates in years, months, weeks, and days.
BR Business Days Calculator
Stop LLMs from calculating SLAs incorrectly. An local, deterministic engine that adds business days while perfectly avoiding weekends and Brazilian national holidays.
Legal Deadline Calculator Engine
Compute rigorous procedural deadlines in business days without risking LLM mathematical hallucination.
Absolute Chronological Timeline Engine
Empower your AI Agent with deterministic chronological precision. Calculate exact ages, compare lifespans, forecast milestones, and track anniversaries. all offline and hallucination-free.
Deadline Calculator
Calculate precise end dates by adding calendar or business days, accounting for weekends and regional holidays.
Bring your own AI
Change the model, client or framework. Keep datetime-ops connected.
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Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
ZCode -
Cline -
Zed -
Continue -
Kiro -
Roo Code -
Zencoder -
Goose -
Void -
Augment Code -
Amp -
Qodo -
Tabnine -
Pieces -
Sourcegraph Cody -
JetBrains -
Warp -
Amazon Q -
Antigravity -
BoltAI -
Raycast -
Jan -
LM Studio -
AnythingLLM -
Open WebUI -
Msty -
Cherry Studio -
LibreChat -
TypingMind -
Chorus -
5ire -
n8n -
LangChain -
LlamaIndex -
CrewAI -
Vercel AI SDK
Before you connect
Questions about datetime-ops.
The practical details behind the request, access and result.
How does Deterministic Datetime Engine help with project deadlines?
It lets your AI client calculate exact dates by skipping weekends automatically. This ensures your project timelines are always based on actual workdays.
Can I use Deterministic Datetime Engine for billing cycles?
Yes, it's great for figuring out exact month differences or handling leap year logic for annual contracts. It removes the risk of manual counting errors.
Does the Deterministic Datetime Engine work offline?
Yes, it runs locally on your machine. Your date calculations don't need an internet connection and your data stays private.
Why should I use this instead of just asking my AI for the date?
AI models often guess dates because they can't count days in their heads. This Connector uses a real engine to get the math right every time.
Can Deterministic Datetime Engine handle different calendar rules?
It uses the standard Gregorian calendar algorithm, which is the standard for most global business and personal calendars.
How do I get Deterministic Datetime Engine into my workflow?
You can find it in the Vinkius catalog, connect it to your preferred client, and start asking for date math immediately.
Why use an Connector for adding days to a date?
AI models predict tokens, they don't "compute" calendars. When crossing months (e.g., February 28th to March 1st) or calculating Business Days, LLMs hallucinate dates frequently. This Connector forces exact algorithmic execution.
Are public holidays supported?
Currently, add_business_days only skips weekends (Saturdays and Sundays). True holiday calculation requires country-specific data which violates the zero-dependency nature of this core utility.
Is this capability secure and local?
Yes. It executes 100% locally using standard Date parsing built into V8. No cloud dependencies or API calls are used.
Why use an MCP for adding days to a date?
AI models predict tokens, they don't "compute" calendars. When crossing months (e.g., February 28th to March 1st) or calculating Business Days, LLMs hallucinate dates frequently. This MCP forces exact algorithmic execution.
One connection away
Give your agent a direct line to datetime-ops.
Connect datetime-ops once. Keep it beside 6,100+ managed Connectors when the next task needs more.
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