Clean up javascript date constructor using toISOstring()

Question

How can I refactor these so toISOstring() can be included alongside the Date constructor. Looking at this makes me feel like each of these should be 1 line of code instead of 2.

  const currentConvertedDate = currentDate.toISOString();

  const packDate = new Date(orderStatus.StartPack);
  const convertedPackDate = packDate.toISOString();

  const loadDate = new Date(orderStatus.StartLoad);
  const convertedLoadDate = loadDate.toISOString();

  const delivDate = new Date(orderStatus.EndDeliv);
  const convertedDelivDate = delivDate.toISOString();