Republican: "Actually it's been day and night. George W. Bush was the man."
Independent: "You're both wrong. It's been night and night. Both parties are corrupt as hell."
Libertarian: "No, I'd say it's been more of dusk and twilight."
Left-leaning moderate: "You're crazy. It's totally been dusk and dawn."
Normal person: "Seriously guys, shut up."
2. What she has achieved so far in her studies is night and day from (=far from) satisfactory.