INNER CODE UNIT · JavaScript

CVD_HISTORY_LEN

dearvn/tradovate-trading-bot · agents/order-flow/index.js:37

const CVD_HISTORY_LEN = 60;       // one entry per second for linreg
const CVD_UPDATE_INTERVAL_MS = 1_000;

// ── DST-aware Eastern Time helpers ────────────────────────────────────────────

function nthSundayUTC(year, month, n) {
  // month: 0-indexed JS month
  const d = new Date(Date.UTC(year, month, 1));
  const day = d.getUTCDay(); // 0=Sun
  d.setUTCDate(1 + ((7 - day) % 7) + (n - 1) * 7);
  return d;
}

function etOffsetHours(now) {
  const y = now.getUTCFullYear();
  // EDT: 2nd Sunday March 02:00 → 4th Sunday November 02:00
  const dstStart = nthSundayUTC(y, 2, 2); // March (month 2)
  dstStart.setUTCHours(7); // 02:00 ET = 07:00 UTC

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