subtract

MCP tool from Chrono MCP by JMoak

Subtract duration from a datetime

How to use it

Project documentation lists subtract for the Chrono MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), then check which tools your installed version makes available. Tool availability can depend on configuration and credentials. A server handshake does not verify this tool’s behavior. See the full listing for setup details.

Install Chrono MCP

$npx @jmoak/chrono-mcp
FULL CHRONO MCP LISTING

Other tools in Chrono MCP (13)

add

Add duration to a datetime

base_time

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

compare_time

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

compare_time_timezone

(optional): Timezone for comparetime

diff

Calculate simple difference in various units

duration_between

Detailed duration breakdown between two times

expand

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

interaction_mode

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

operation

(required): Type of calculation

sort

Sort timestamps chronologically

stats

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

timezone

(optional): Timezone for basetime

years

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