World Clock Pro: Time & Timezone Converter

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

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

  • Get Current Time: 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 location
  • Convert Time: 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 wor
  • Time By Coordinates: Resolve the timezone for a latitude/longitude coordinate (via geo-tz) and return the local time there.

What data it sees

Do you need an account

No: the server works without sign-in

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

Built for the questions users actually ask: "What time is it in Tokyo right now?", "Convert 9 AM EST to London and Sydney time", "When is a good time to call Singapore from New York?", "When do the clocks change in the UK?", "What timezone are these coordinates in?"

Five read-only tools: current local time in up to 50 places per call, DST-aware conversion between cities and timezones, coordinate-to-timezone lookup, DST transition dates for any year, and multilingual search across 224,000+ cities. Every response includes a source_url citing the matching worldclock.pro page. No API key, no signup.

How to connect

How to connect World Clock Pro: Time & Timezone Converter to Claude

The server address to paste into Claude settings:

https://worldclock--worldclockpro.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect World Clock Pro: Time & Timezone Converter to ChatGPT

The server address to paste into ChatGPT settings:

https://worldclock--worldclockpro.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect World Clock Pro: Time & Timezone Converter to Cursor

The server address to paste into Cursor settings:

https://worldclock--worldclockpro.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (5)

Raw names from tools/list. Only developers need these.

get_current_timeGet 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.
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. Results include a source_url linking the matching worldclock.pro page when available.
time_by_coordinatesResolve the timezone for a latitude/longitude coordinate (via geo-tz) and return the local time there.
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. The result includes a source_url linking the matching worldclock.pro page when available.
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. Each result includes a source_url linking the city's worldclock.pro page.