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pro.worldclock/time

by worldclock.pro · remote · no sign-in to list tools · v1.0.0 · published by pro.worldclock

A real clock for AI agents: current time, timezone conversion, and DST facts from the IANA tzdb.

Changes · 1
CompareRegistry entry

5 tools: 1 change things and 4 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http time https://worldclock.pro/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnconvert_time

    The server marks "convert_time" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "convert_time" says "convert": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

5 tools

Changes things 1Claude Code: ask
  • convert_timeGiven a UTC instant (or a wall time in a source location), return the corresponding local time in each of up to 50 target locations.1 finding

    Why it is in this group

    • The name "convert_time" says "convert": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "convert_time" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "convert_time" says "convert": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Given a UTC instant (or a wall time in a source location), return the corresponding local time in each of up to 50 target locations. Results include a source_url linking the matching worldclock.pro page when available.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 4Claude Code: allow
  • get_current_timeGet the current local time (or the time at a given instant) in one or more locations.No findings

    Why it is in this group

    • The name "get_current_time" says "get": a word for reading.
    Description, as the server wrote it
    Get the current local time (or the time at a given instant) in one or more locations. Each location is a city name, an IANA timezone / abbreviation, or coordinates. Up to 50 locations. Results include a source_url linking the matching worldclock.pro page when available.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_dst_transitionsReport whether a location observes daylight saving time, the next clock change, and every summer/winter-time transition (date, local time, and before/after offset) within a year.No findings

    Why it is in this group

    • The name "get_dst_transitions" says "get": a word for reading.
    Description, as the server wrote it
    Report whether a location observes daylight saving time, the next clock change, and every summer/winter-time transition (date, local time, and before/after offset) within a year. The result includes a source_url linking the matching worldclock.pro page when available.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_citiesFind cities by name (multilingual, diacritic-insensitive) — useful to resolve a place to a canonical slug, IANA timezone, and coordinates before calling the time tools.No findings

    Why it is in this group

    • The name "search_cities" says "search": a word for reading.
    Description, as the server wrote it
    Find cities by name (multilingual, diacritic-insensitive) — useful to resolve a place to a canonical slug, IANA timezone, and coordinates before calling the time tools. Each result includes a source_url linking the city's worldclock.pro page.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • time_by_coordinatesResolve the timezone for a latitude/longitude coordinate (via geo-tz) and return the local time there.No findings

    Why it is in this group

    • The description's first verb is "resolve": a word for reading.
    Description, as the server wrote it
    Resolve the timezone for a latitude/longitude coordinate (via geo-tz) and return the local time there.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http time https://worldclock.pro/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__time__get_current_time",
      "mcp__time__time_by_coordinates",
      "mcp__time__get_dst_transitions",
      "mcp__time__search_cities"
    ],
    "ask": [
      "mcp__time__convert_time"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as time. Review it before you use it.