Grammar help

[StageTech]

I just ran into a sentence that has me thinking I need some help:
"Han het Dag" -- He was named Dag.
Can someone provide the proper translations for these similar sentences, please?

He is named Dag
His name was Dag
His Name is Dag

I know that some may be similar or exactly the same and tense is determined by context, but context is difficult when all you have is a single sentence.
Does "He was named Dag" indicate someone who has died, or left a place, or has changed his name; or can it be any of these reasons?
Mange Takk!

[Olav]

He is named Dag : Han kalles Dag/Han heter Dag
His name was Dag : Hans navn var Dag
His Name is Dag : Hans navn er Dag/Han heter Dag

Does "He was named Dag" indicate someone who has died, or left a place, or has changed his name; or can it be any of these reasons?
You're quite right; any of them.

[spencer1411]

"Han het Dag" is just as likely to show up in a context where he hasn't died, left, nor changed his name, but the events being described are in the past so the surrounding text is written in that tense. For example, a story could start with "Det var en gang en mann som het Dag."