evening the early part of the night between the end of the day and the time you go to bed——Longman Dictionary

The close of day, esp. the time from about 6 p.m., or sunset if earlier, to bedtime; the period between afternoon and night——Oxford English Dictionary

night the dark part of each 24-hour period when the sun cannot be seen and when most people sleep——Longman Dictionary

The period of darkness occurring between one day and the next; that part of a 24-hour period during which a place receives no light from the sun; the time between evening and morning.——Oxford English Dictionary  @en