timezones
(array, optional): List of timezone names for conversions
How to use it
timezones is exposed by the Chrono MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the timezones 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-mcpOther tools in Chrono MCP (18)
Add duration to a datetime
(optional): Base ISO datetime(s). String or array. Defaults to current time.
(optional): Compare ISO datetime(s) for diff/durationbetween. String or array.
(optional): Timezone for comparetime
(string, optional): ISO datetime string. Defaults to current time
Calculate simple difference in various units
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
(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
, months, days, hours, minutes, seconds (optional): Duration values