Evening

noun

1. The time of the day between dusk and night, when it gets dark.
2. The time of the day between the approximate time of midwinter dusk and midnight (compare afternoon); the period after the end of regular office working hours.
3. A concluding time period; a point in time near the end of something; the beginning of the end of something.

   "It was the evening of the Roman Empire."

4. A party or gathering held in the evening.