Date Math Calculator

Connect Remote server

claude mcp add --transport http date-math-calculator https://apished.com/mcp/v1/datemath

{
  "mcpServers": {
    "date-math-calculator": {
      "url": "https://apished.com/mcp/v1/datemath"
    }
  }
}

{
  "servers": {
    "date-math-calculator": {
      "type": "http",
      "url": "https://apished.com/mcp/v1/datemath"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://apished.com/mcp/v1/datemath

Tools 6 found in our last check

• datemath_add

  Adds years/months/days to date. years/months are applied together with end-of-month clamping — e.g. 2026-01-31 + 1 month = 2026-02-28, not an overflowed 2026-03-03. days is then applied as plain calendar-day arithmetic.

• datemath_age

  Age in whole years as of asOf (optional, defaults to the current UTC date). A Feb-29 birthDate is treated as falling on March 1 in a non-leap asOf year.

• datemath_businessdays

  Counts days in [from, to] (inclusive on both ends) whose weekday is in weekdays (default mon-fri) and which aren't in holidays.

• datemath_dayofweek

  Day of the week for date: both the weekday name and its ISO 8601 weekday number (1=Monday..7=Sunday).

• datemath_diff

  Day difference between two YYYY-MM-DD dates: to minus from, in whole days. Negative if to is before from.

• datemath_leapyear

  Checks whether year is a leap year in the Gregorian calendar.

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