# Date Math Calculator

> Date Math Calculator — com-apished-date-math-calculator. Use this tool when you need to perform date arithmetic, such as calculating day differences, determining business days, or finding ages. It solves problems related to date and time calculations, including accounting for leap years and identifying day-of-week. The tool takes date inputs and returns calculated outputs, making it useful for scheduling, planning, and data analysis tasks.

Canonical page: https://skillsregistry.net/skills/com-apished-date-math-calculator  
JSON: https://api.skillsregistry.net/v1/skills/com-apished-date-math-calculator

## Description

Date arithmetic: day differences, business days, age, leap years, day-of-week, add/subtract.

## Trust

- **Trust score (0–1):** 0.30
- **Verification tier:** unverified
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-02

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/com.apished%2Fdate-math-calculator)

## Use it

MCP endpoint published by the skill: `https://apished.com/mcp/v1/datemath`

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "com-apished-date-math-calculator"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/com-apished-date-math-calculator` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/com-apished-date-math-calculator/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt