At the present time (5)
(Other definitions for today that I've seen before include "Modern times" , "Presently" , "Yesterday's tomorrow" , "Current period of 24 hours" , "Nowadays" .)
'at the present time' is the definition.
(synonyms)
This is all the clue.
(Other definitions for now that I've seen before include "At present, this instant" , "The present moment" , "Today" , "At this moment in time" , "Immediately" .)