Compare timezones

An MCP tool from the Developer Toolbox server, hosted on mcp.hjlabs.in.

Show one instant in time as local time across several IANA timezones at once.

Name on the gateway: devtools__compare_timezones · read-only.

Parameters

Name	Type	Description
`instant` required	`string`	Unix millisecond timestamp or ISO 8601 string.
`zones` required	`array`	IANA timezone names.

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments

{
  "name": "devtools__compare_timezones",
  "arguments": {
    "instant": "…",
    "zones": []
  }
}

Or connect the Developer Toolbox server directly, which lists 18 tools including this one:

Run in your terminal

claude mcp add --transport http hj-devtools https://mcp.hjlabs.in/mcp/devtools \
  --header "Authorization: Bearer YOUR_API_KEY"

Use the compare timezones tool with instant set to ….