Student or Learner
Can we use 'now that' with '' the past tense'' or only ''the present tense''?
You can use it with a past tense, just as you can 'now'.
Now that he lived in town, he had a better chance to make friends.
Now that he had passed his examinations, he could ask for a rise.
He had passed his examinations; now he could ask for a rise.