Duration parse/humanize

Parse a duration like "2h30m" / "1d4h" / "90s" to seconds, or humanize a number of seconds.

Input

Field	Type	Description
value *	any	Duration string ("1d2h3m4s") or number of seconds

Example output

{
  "seconds": 9000,
  "human": "2h 30m",
  "iso8601": "PT2H30M"
}

Try it — see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/duration \
  -H "Content-Type: application/json" \
  -d '{"value":"2h30m"}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/duration", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "value": "2h30m"
  }),
});

Related tools