Neptune will pass through opposition at 00:54HST today. Observers will know that opposition places a planet nicely for convenient observation, rising at sunset, transiting near midnight, and setting at dawn.
Note: Astronomical event times and dates are calculated for the island of Hawai‘i at UTC-10 unless otherwise noted. The times shown should be applicable for much of the central Pacific region. For other locations you should consult a local reference or planetarium software.