Bitcoin address doesn't have timestamps, with an extended public keys, you can pregenerate billions of wallet address without anyone noticing. The only way you can detect address existence is when it receives a UTXO for the first time.
(emphasis mine)
And sending a transaction. Although this practically can never happen because an empty address has nothing it can send. Don't forget posting Bitcoin signed & raw transactions on the internet, or a signed message, or anything that involves posting a BTC address anywhere, and possibly opening an LN channel (I believe your address or pubkey is shared with the other end during the initial exchange, CMIIW).