Forgive the newb question here, why would you want to delay the transaction?
Is this a precursor to timed or automatic payments or transactions?
To force yourself to save maybe, or to fulfill a will.
It's not really exactly timed nor automatic.
It's fixed to a block number so you can estimate a date and time but it wouldn't be exact at all, only approximate.
And it's not automatic, you need to store the the signed transaction and then manually broadcast after the target block.
However a service could be created where you can send the signed transaction and it would automatically broadcast when the time has come.