calc.engineer / General & Math / Date Difference

Date Difference v1.0.0

Calculate the difference between two dates in days, weeks, months, years, and business days. Accepts dates in YYYY-MM-DD format. Returns the absolute difference (order doesn't matter) plus a flag indicating whether the end date is in the future relative to start. Business days count only Monday through Friday. Useful for project planning, deadline tracking, contract duration calculations, and age computations.

Start date in YYYY-MM-DD format (e.g., '2024-01-15').
End date in YYYY-MM-DD format (e.g., '2024-12-31').
Fill in the inputs and Compute to see the structured result.

From an agent (MCP) or the API

curl -X POST https://calc.engineer/api/date_difference \
  -H "Content-Type: application/json" \
  -d '{"start_date": …, "end_date": …}'

MCP: connect to https://calc.engineer/mcp and call date_difference.

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