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Time duration
An MCP tool from the Calculators server, hosted on mcp.hjlabs.in.
Convert between a duration in seconds (or ms, minutes, hours, days) and a human form like "2d 3h 4m 5s", or add up a list of durations ("1h30m", "45m", "2:15:00").
Name on the gateway: math__time_duration · read-only.
Parameters
| Name | Type | Description |
|---|---|---|
value required | string | A number of seconds, "1h30m"-style text, "hh:mm:ss", or several separated by commas to add up. |
unit | seconds | milliseconds | minutes | hours | days | Unit of a bare number. Default "seconds". |
How to call it
Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:
{
"name": "math__time_duration",
"arguments": {
"value": "…"
}
}Or connect the Calculators server directly, which lists 28 tools including this one:
claude mcp add --transport http hj-math https://mcp.hjlabs.in/mcp/math \
--header "Authorization: Bearer YOUR_API_KEY"Try asking
Use the time duration tool with value set to ….