This is the 678th most frequent Estonian word.
nüüdseks
By now; as of now.
In this sentence, 'nüüdseks' is used to denote a point in time where the action completed or the state changed.
Nüüdseks on ilm selgunud ja päike särab.
By now, the weather has cleared up and the sun is shining.
Here, 'nüüdseks' emphasizes that the completion of the tasks has occurred by the current moment.
Me oleme nüüdseks kõik ülesanded lõpetanud.
We have by now completed all the tasks.
In this case, 'nüüdseks' indicates that clarity of his standpoint occurred by the current point in time.