Yes. Use NTP with ≥4 diverse time sources, just as RFC 5905 suggests doing. And use GPS. (If you're reliant upon only one source of a thing, and that thing i

Yes. Use NTP with ≥4 diverse time sources, just as RFC 5905 suggests doing. And use GPS. (If you're reliant upon only one source of a thing, and that thing is important to you in some valuable way, then you're doing it wrong. In other words: Backups, backups, backups.)