Subsequent to and Until now

Until now and subsequent to are semantically related in between the present and a previous time topic. In some cases you can use "Until now" instead a preposition phrase "Subsequent to".

Until now adverb - Used in negative statement to describe a situation that has existed up to this point or up to the present time.

Subsequent to and until now are semantically related in between the present and a previous time topic. You can use "Subsequent to" instead a preposition phrase "Until now".