koc-loop/lib/collection-schedule.ts

function shanghaiDateFromTimestamp(timestamp: number) {
  return new Date(timestamp + 8 * 60 * 60 * 1000)
    .toISOString()
    .slice(0, 10);
}

function shanghaiHourFromTimestamp(timestamp: number) {
  return Number(
    new Date(timestamp + 8 * 60 * 60 * 1000)
      .toISOString()
      .slice(11, 13),
  );
}

export function isCollectionScheduleDue(
  scheduledDate: string,
  timestamp: number,
) {
  const currentDate = shanghaiDateFromTimestamp(timestamp);
  const currentHour = shanghaiHourFromTimestamp(timestamp);
  return (
    scheduledDate < currentDate ||
    (scheduledDate === currentDate && currentHour >= 9)
  );
}