add

MCP tool from Chrono MCP by JMoak

Add duration to a datetime

How to use it

add is exposed by the Chrono MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the add tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

Install Chrono MCP

$npx @jmoak/chrono-mcp

FULL CHRONO MCP LISTING

Other tools in Chrono MCP (18)

(optional): Base ISO datetime(s). String or array. Defaults to current time.

(optional): Compare ISO datetime(s) for diff/durationbetween. String or array.

compare_time_timezone

(optional): Timezone for comparetime

(string, optional): ISO datetime string. Defaults to current time

Calculate simple difference in various units

duration_between

Detailed duration breakdown between two times

Expand an RFC 5545 RRULE or ISO 8601 repeating interval into occurrences

(array, optional): Output formats (iso, rfc2822, sql, local, localeString, short, medium, long, full)

(boolean, optional): Include UTC offsets in output

interaction_mode

(optional): autodetect singletomany manytosingle pairwise crossproduct aggregate. Defaults to autodetect.

(string, optional): Locale for formatting (e.g., en-US, fr-FR, ja-JP)

(required): Type of calculation

Sort timestamps chronologically

Statistical analysis of time series and durations (up to 100,000 timestamps per call)

Subtract duration from a datetime

(optional): Timezone for basetime

(array, optional): List of timezone names for conversions

, months, days, hours, minutes, seconds (optional): Duration values