oldTimezoneOffsetFix.ts

/**
 * @link https://bugs.chromium.org/p/v8/issues/detail?id=3547
 * @link https://github.com/nodejs/node/issues/33306
 */
const oldTimezoneOffsetFix = (d: Date): number => {
  const ms = d.getTime();
  if (isNaN(ms)) return 0;
  const utc = new Date(d.toISOString().slice(0, -1)).getTime();
  const offset = d.getTimezoneOffset() * 60_000;
  return ms - utc + offset;
};