APFS filesystem format
  Timestamps are 64bit nanoseconds

As far as I can tell, this will overflow in just 11 years – 2028-06-15 09:33:27.3709551615 UTCWhy would this go into a new standard? Is there a practical use for such a high level of granularity?edit: off by a factor of 10 in my calculation...  
It's actually2554-07-21 23:34:33.709551615 UTC