pro.worldclockPublished by worldclock.proOfficial publisherv1.0.0Updated Oct 24, 2026
A real clock for AI agents: current time, timezone conversion, and DST facts from the IANA tzdb.
A public, read-only remote MCP server that gives an assistant accurate current times, timezone conversions and daylight-saving facts for cities worldwide.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/pro.worldclock%2Ftime/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"time": {
"type": "http",
"url": "https://worldclock.pro/mcp"
}
}
}Give your AI agent a real clock. Public, read-only, no API key:
Models cannot reliably compute local times, DST transitions, or timezone math on their own. This server gives any MCP-capable assistant live answers from the IANA timezone database and a 224,000+ city registry, with the answer's source page cited in every response.
https://worldclock.pro/mcp (Streamable HTTP, stateless, JSON-RPC 2.0)/.well-known/mcp/server-card.jsonpro.worldclock/time (domain-verified)Claude Code
Claude Desktop — Settings → Connectors → Add custom connector → paste the URL.
Cursor — paste into ~/.cursor/mcp.json (or use the button on worldclock.pro/mcp):
VS Code
ChatGPT — Settings → Apps & Connectors → Advanced settings → enable Developer mode → create a connector with the URL and No authentication. The server is read-only, so it works on plans where custom connectors are limited to read-only tools.
OpenClaw — add to openclaw.json:
MCP Inspector
Every result includes a source_url linking the matching worldclock.pro page,
so answers can cite a live source.
"Tokyo", "new-york", "nyc", "Москва", "São Paulo""America/New_York") or abbreviation ("PST", "ET", "UTC")This repo is itself a plugin marketplace:
The plugin wires up the remote MCP server and installs the world-clock skill,
which teaches the assistant when to use which tool and the classic timezone traps
(EST vs ET, half-hour offsets, date-line weekday changes).
The same skill follows the Agent Skills format:
readOnlyHint: true. There are no
write operations, no accounts, and nothing to sign in for.pro.worldclock/time is published with
cryptographic proof of control of worldclock.pro.search_cities returns up to 25 matches).Retry-After beyond that).LOCATION_NOT_FOUND, INVALID_TIMEZONE,
AMBIGUOUS_INSTANT, ...) an agent can read and recover from.MIT licensed. See SECURITY.md for the security posture.
Source: README.md at commit 43d4047
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 locations. Results include a source_url linking the matching worldclock.pro page when available.
atlocationsrequiredConvert a time across locations
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.
utcfromtargetsrequiredGet time by coordinates
Resolve the timezone for a latitude/longitude coordinate (via geo-tz) and return the local time there.
atlatituderequiredlongituderequiredGet DST transitions
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.
yearlocationrequiredSearch cities
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.
limitqueryrequiredcountry100% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
https://worldclock.pro/mcpclaude mcp add --transport http worldclockpro-time https://worldclock.pro/mcp{ "mcpServers": { "worldclockpro-time": { "url": "https://worldclock.pro/mcp" } } }code --add-mcp '{"name":"worldclockpro-time","type":"http","url":"https://worldclock.pro/mcp"}'{ "mcp": { "servers": { "worldclockpro-time": { "url": "https://worldclock.pro/mcp", "transport": "streamable-http" } } } }npx @modelcontextprotocol/inspector# Transport: "Streamable HTTP" → URL: https://worldclock.pro/mcp/plugin marketplace add worldclockpro/worldclock-mcp/plugin install world-clock@worldclockpronpx clawhub@latest install world-clock # once published on ClawHub# or copy skills/world-clock/ into your skills directory