凌晨 wee hours, from 0:00 (midnight) to sunrise.
黎明,拂晓,破晓 foredawn, daybreak, period from darkness to daybreak, you may speak 凌晨 also.
清晨 early morning, from daybreak to sunrise, you may speak 早晨 also.
早晨 morning, from daybreak to about 9:00, you may speak 上午 also.
上午 morning, from sunrise to about noon.
中午 noon, tens of minutes or one hour around 12:00.
午后 afternoon, tens of minutes or one hour after lunchtime, you may speak 下午 also.
下午 afternoon, from noon to sunset.
傍晚,黄昏 nightfall, evening, period from sunset to darkness, you may speak 下午 also.
晚上 evening, from darkness to normal sleeping time.
夜晚 night, after supper, before midnight, you may speak 晚上 also.
半夜,午夜 midnight, tens of minutes or one hour around 0:00, you may speak 晚上 also.
深夜 late night, from 22:00 to about 2:00, you may speak 晚上 or 凌晨.
There isn't absolute boundary between some words, the ranges indicated by them may be overlapped with each other, or included in another one, these are proximate time ranges.
凌晨 from midnight to daybreak or sunrise.
早晨, 早上 early morning, or replace with 上午 simply.
上午 morning, from sunrise to noon.
下午 afternoon, from noon to sunset
晚上 evening, from sunset to midnight.