Duration

{
  "asOf": "2026-10-11T23:39:13.755Z",
  "degraded": false,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "hasCalendarComponents": true,
  "items": [
    {
      "days": 0,
      "hours": 36,
      "input": "PT36H",
      "iso": "PT36H",
      "minutes": 0,
      "months": 0,
      "seconds": 0,
      "totalSeconds": 129600,
      "years": 0
    },
    {
      "days": 10,
      "hours": 2,
      "input": "P1Y2M10DT2H30M",
      "iso": "P1Y2M10DT2H30M",
      "minutes": 30,
      "months": 2,
      "seconds": 0,
      "totalSeconds": null,
      "years": 1
    }
  ],
  "notChecked": [
    "the length of a year or month: totalSeconds is null whenever years or months are present, because they have no fixed length",
    "daylight saving: a day is taken as 24 hours",
    "…1 more"
  ],
  "reasons": [
    "Components are added field by field: years with years, months with months, days with days, and the time part as exact milliseconds.",
    "Weeks are converted to 7 days.",
    "…1 more"
  ],
  "source": "ISO 8601 duration grammar, computed locally",
  "sum": {
    "days": 10,
    "hours": 39,
    "iso": "P1Y2M10DT39H15M",
    "minutes": 15,
    "months": 2,
    "seconds": 0,
    "totalSeconds": null,
    "years": 1
  },
  "sumIso": "P1Y2M10DT39H15M",
  "summary": "3 duration(s) sum to P1Y2M10DT39H15M.",
  "totalHours": null,
  "totalSeconds": null,
  "verdict": "COMPUTED"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://work-time-calc.x402tookit.com/duration?carryDays=false&durations=PT36H%2CP1Y2M10DT2H30M%2CPT45M'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://work-time-calc.x402tookit.com/duration?carryDays=false&durations=PT36H%2CP1Y2M10DT2H30M%2CPT45M' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

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

// Pays at most $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwork-time-calc.x402tookit.com%2Fduration
const res = await pay("https://work-time-calc.x402tookit.com/duration?carryDays=false&durations=PT36H%2CP1Y2M10DT2H30M%2CPT45M");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://work-time-calc.x402tookit.com/duration?carryDays=false&durations=PT36H%2CP1Y2M10DT2H30M%2CPT45M")
    print(res.status_code, res.text)