[wongarsu]

It's fine as a timestamp implementation, and great for many uses. But I think a big problem with the documentation. They start off by saying it's "at nanosecond resolution in UTC Epoch time", and then they go on to explain how it uses a completely different encoding that is neither compatible with UTC nor with TAI (atomic time which ignores leap seconds). And then they jump ahead to sample code which again pretends that the timestamp is UTC.

No matter whether you like "google time" or not, this is horrible documentation. They are glossing over an issue which should be marked with big red letters.