将普通字符串转换为日期时间格式

function convertToISO(timeString) {
  const [hour12, ampm] = timeString.split(/(?=[ap]m$)/i)
  const hour = hour12 % 12 + (ampm.toLowerCase() === 'pm' ? 12 : 0)
  const date = new Date()
  // Set time, adjusted for time zone
  date.setHours(hour, -date.getTimezoneOffset(), 0, 0)
  return date.toISOString()
}

console.log(convertToISO('5pm'))