Function targetInternalTime

pkgs/tz/src/date/mini.js:520–529

(date, time)

}

function targetInternalTime(date, time) {
  // Compute the target-zone wall-clock representation for a timestamp without
  // mutating the TZDate. This mirrors syncToInternal for temporary checks.
  const internal = new Date(time ?? +date);
  internal.setUTCSeconds(
    internal.getUTCSeconds() -
      Math.round(-tzOffset(date.timeZone, internal) * 60),
  );
  return +internal;
}