up to now in WordNet English dictionary

1. used in negative statement to describe a situation that has existed up to this point or up to the present time
   "So far he hasn't called"; "the sun isn't up yet"
   so far  thus far  up to now  hitherto  heretofore  as yet  yet  til now  until now  so far  thus far  up to now  hitherto  heretofore  as yet  yet  til now  until now 
   
2. prior to the present time
   "no suspect has been found to date"
   up to now  to date  up to now  to date