nighttime
US /ˈnaɪt.taɪm/
UK /ˈnaɪt.taɪm/

1.
nuit, nocturne
the time between evening and morning; the time of darkness between one day and the next
:
•
The city lights sparkle beautifully at nighttime.
Les lumières de la ville scintillent magnifiquement la nuit.
•
It's safer to travel during the day than at nighttime.
Il est plus sûr de voyager le jour que la nuit.