At an unearthly/ungodly hour phrase
"an" can replaced with "this" or "some".
Too early in the morning or too late at night, and therefore causing annoyance.
I know that I've come to see you at an unearthly hour like this, but I have to tell you this urgent information.
I get used to waking up at 8 am, but the meeting was planned to take place at 5 am. I'm wondering how can I attend it at an ungodly hour like that.
Who is constantly knocking on our door at an ungodly hour like this?
Used to indicate a period of time in the early morning after midnight but before sunrise
This phrase was formed based on the meaning of the adjective "unearthly/ ungodly".