Is it possible for person A to schedule an eth transfer to person B 1 week in the future, possibly by offchain signing the transaction?

I've seen the concept of offchain signing and am wondering if person A could offchain sign the eth transfer, that way they pay no gas and transfer no eth the day of signing. But 1 week later person B can execute the transaction, pay the gas fee, and receive the eth from person A all at once.

Is this scenario possible with the native currency of eth, ideally w/ a popular wallet? It seems it's possible w/ erc-20 tokens if they've implemented their contracts to allow it but I would like to do this with eth.