Totally get it in the military context, and why it&#x27;s useful in the context of a missile lobbing holiday, but was rather more curious as to why it&#x27;d be used as a time source for synchronising packets in commercial applications as the article describes.<p>Based on what others have said and my own inkling I think it&#x27;s about synchronisation at a fine timescale without having to trouble yourself with bothersome shit like relativity, and leaving that particular pain in the ass to the US military. That&#x27;s what I meant by latency, but phone keyboard, walking, lazy!