Current Time
| Zone | Abbr | Time | Date |
|---|
← Time zone conversions
Convert GMT to EST
Convert GMT to EST in your browser. Pick a time below and read it in EST.
Convert
Use this tool from AI agents
This tool's engine is available to AI agents over MCP as convert_timezone. Add the Clean.tools server, then your agent can call it directly.
Claude Code
claude mcp add --transport http clean-tools https://mcp.clean.tools/mcpclaude mcp add --transport http clean-tools https://mcp.clean.tools/mcpClaude Desktop (mcpServers)
{"mcpServers":{"clean-tools":{"command":"npx","args":["-y","@clean-tools/mcp"]}}}{"mcpServers":{"clean-tools":{"command":"npx","args":["-y","@clean-tools/mcp"]}}}Cursor
https://mcp.clean.tools/mcphttps://mcp.clean.tools/mcpOr call it over plain HTTP from any script. Same engine, JSON in and JSON out, no key:
curl
curl -s https://api.clean.tools/v1/convert_timezone \
-H 'content-type: application/json' \
-d '{"datetime":"2025-07-06T09:30","fromTz":"America/New_York","toTz":"Asia/Tokyo"}'curl -s https://api.clean.tools/v1/convert_timezone \
-H 'content-type: application/json' \
-d '{"datetime":"2025-07-06T09:30","fromTz":"America/New_York","toTz":"Asia/Tokyo"}'JavaScript
const res = await fetch('https://api.clean.tools/v1/convert_timezone', {
method: 'POST',
headers: { 'content-type': 'application/json' },
body: JSON.stringify({ datetime: '2025-07-06T09:30', fromTz: 'America/New_York', toTz: 'Asia/Tokyo' })
});
const data = await res.json();const res = await fetch('https://api.clean.tools/v1/convert_timezone', {
method: 'POST',
headers: { 'content-type': 'application/json' },
body: JSON.stringify({ datetime: '2025-07-06T09:30', fromTz: 'America/New_York', toTz: 'Asia/Tokyo' })
});
const data = await res.json();Convert GMT to EST
This converter turns a GMT time (London) into EST (New York). For example, 9:00 AM GMT is 04:00:00 EST. The converter above is preset to GMT and EST, so you can pick any date and time and read the result, and it accounts for daylight saving automatically.
All conversions use your browser's built-in time zone database. Nothing is uploaded. No cost, no signup, no tracking.
Frequently asked questions
Does this handle daylight saving time?
Yes. GMT and EST shift with daylight saving in most regions, and the converter uses the correct offset for the specific date you choose rather than a fixed number of hours.
Can I use this from the command line or an AI agent?
Yes. It is a REST endpoint at https://api.clean.tools/v1/convert_timezone and an MCP server you can add to Claude, Claude Code, or Cursor. The @clean-tools/mcp npm package runs it as a local stdio server.
More time zone conversions
Use Clean.tools from your AI agent
This tool is also convert_timezone on the Clean.tools MCP server — the same engine, callable by your AI agent directly. No key, no signup: requests are processed in memory and request contents are never stored.
Claude Code
claude mcp add --scope user --transport http clean-tools https://mcp.clean.tools/mcpclaude mcp add --scope user --transport http clean-tools https://mcp.clean.tools/mcpAny MCP client (streamable HTTP, authless)
https://mcp.clean.tools/mcphttps://mcp.clean.tools/mcpEvery tool, the REST API, and setup for Cursor, Claude Desktop, VS Code & more →