Setting Date to January 1, 1970 Can Permanently Brick Your iOS Device

techstuffer.com

9 pointscat-dev-null4 comments

sounds like a great application for DNS spoofing pool.ntp.org to a local server that always responds with 1 Jan 1970

unless ios devices get their time from cell networks or whatever

That would be time.apple.com.

DHCP can respond with a time server. Would iOS use this to connect to the advertised NTP?

If it did, the NTP client would ignore anything more than 1000s off from the local clock.