Date Math v1.7.0Normalize timestamps to UTC
Detect and convert up to 100 mixed timestamps to UTC ISO 8601: Unix seconds/ms/µs/ns, Excel serial dates, Windows FILETIME, ISO 8601, RFC 2822, YYYY/MM/DD, month-name dates. Flags ambiguous values (03/04/2026: March 4 or 3 April? 45000: Excel date or Unix seconds?) with alternatives. Use for cleaning CSV, log and spreadsheet data.
MCP tool timestamp_normalizeHTTP POST /v1/timestamp25 free calls a day, then $0.001
Try it
Runs the real tool over MCP. Edit the arguments and run. Uses your daily free calls.
timestamp_normalize
result
{
"timezone": "Asia/Manila",
"count": 4,
"ok": 4,
"results": [
{
"input": 1762500000,
"ok": true,
"format": "unix_seconds",
"utc": "2025-11-07T07:20:00Z",
"unix_seconds": 1762500000,
"unix_ms": 1762500000000,
"local": "2025-11-07T15:20:00+08:00",
"assumed_timezone": null,
"ambiguous": false,
"alternatives": []
}
]
}
The result shown before you run is a saved example response.
Use it from your agent
Add the MCP server once and your agent can call timestamp_normalize and the other 19 tools.
Claude Code
One command in your terminal.
claude mcp add --transport http date-math https://date-math.datemath.workers.dev/mcp
Any MCP client
Claude Desktop, Cursor, VS Code, Windsurf.
{
"mcpServers": {
"date-math": {
"url": "https://date-math.datemath.workers.dev/mcp"
}
}
}HTTP + x402
POST JSON; pay the 402 with any x402 client.
curl -X POST https://date-math.datemath.workers.dev/v1/timestamp \
-H "Content-Type: application/json" \
-d '{"values":[1762500000,"03/04/2026 14:30",45000,"Tue, 10 Nov 2026 14:30:00 GMT"],"timezone":"Asia/Manila"}'