It’s an interesting property of the universe that there’s no way to measure time directly. It clearly exists, yet all you can measure is change of things besides time.

Time lock puzzles take variable time depending on hardware. You can’t really set an accurate specific release time.

Any change in the universe that a computer can detect is just another spoofable input.

Blockchain tries to solve essentially the same problem but the best it can reliably do is establish a chronology. That’s not a specific time. And it has fundamental vulnerabilities, however unlikely you think they are to be exploited in established systems.

Intel is building proof of elapsed time into their chips but that’s not trustless.

Timelock puzzles and blockchain are imo hacky solutions to one of the most important outstanding problems in cryptography: securely and trustlessly agreeing on elapsed time.