[Aetae]

alert(JSON.stringify(

[{
  year: 2345,
  month: 11,
  day: 9,
  hour: 11,
  minute: 12,
  second: 13,
  microsecond: 123456
},
{
  year: 2345,
  month: 11,
  day: 10,
  hour: 11,
  minute: 12,
  second: 13,
  microsecond: 123456
}].filter( obj => obj.day === 10 )

, 0, '\t'))