Names meaning day, night, and special times of the the day like dawn, sunset, midday, and midnight.

Time of Day Names

Ukrainian Artem (ar-TEM) and Russian Artyom/Artiom (which can also be transcribed as Artem, though still pronounced ar-TYOM in Russian) are ultimately derived from the name of the Greek goddess Artemis: goddess of the moon and hunting. The meaning of her name is unknown, though it may be related to the Greek for "safe" or for "butcher".

Artem

Artemis, one of the key figures of the female Greek pantheon, is the ancient virgin goddess of the hunt, wilderness, animals, childbirth, and a protector of young girls, later associated with the moon. Artemis is the equivalent to the Roman Diana, but a fresher and more distinctive choice.
 Artemis was the twin sister of Apollo, one of the twelve deities who lived on Mount Olympus, and has, in more recent years, been associated with the Artemis Lunar program. As such, it may appeal to fans of both mythology and space exploration.
 
 The meaning of the name is largely unknown, but it's related to two Greek words meaning safe or butcher.
 Artemas, on the other hand, is a male name, though some gender confusion could arise from the Artemis Fowl novels, making Artemis one of those rarer feminine names that has also switched into a unisex choice (rather than the other way round). 
 
Appearing in the US charts (briefly) in the 2020s, it has been consistently in the England and Wales Top 1000 since 2018, given to around 40 girls a year. Nicknames Ari, Artie, Emmie, Issy, and Missy may further its appeal.

Artemis

Arun is the common masculinization of the name Aruna, the Hindu god who drives the sun god Surya across the sky in his chariot. Aruna is also used as a female name.

For parents looking for a cross-cultural name, Arun is pronounced similarly to the Hebrew Aaron.

Arun

day and night baby names - baby sleeping bed night unisex teddy bear shadows

day and night baby names

Time of day names include names related to day, night, dawn, noon, morning, and midnight, with baby girl names and baby boy names related to times of day, with meanings, origins, and popularity (Page 6)

100+ Time of Day Names

Artem

Artemis

Arun