The closest thing I find is what is called 'watches' (forgive the pun.)Is there a place in scripture where the 24 hour day is mentioned?
A day is a day and a night is a night, no question. But has it always been 24 hours?
If I remember, my understanding of the “24 hour” day this was an Egyptian innovation based on using sun dials for day and astronomical observations for night. They based their 24 hour day on a 10 hour daylight day and a 12 hour night with 2 hours of twilight, all then added together to equal 24 hours.
It was still not the standard 24 hours we know now, because the days were longer in summer, and conversely, shorter in winter as were the nights, so an hour wasn’t always 60 minutes.
I thought it was then left to the Greek astronomers to refine and standardize the 24 hour day into something like what we use today.
All this only relates from an Earth perspective and means little to the rest of God’s limitless creation as visible on a clear evening.
These are prayer watches and there are eight of them throughout a day as follows...
FWIW...
First Watch (The Evening Watch from 6:00 P.M. – 9:00 P.M.)..Matthew 14:15-23)
Second Watch (from 9:00 P.M. to 12:00 A.M.)..(Luke 12:38)
Third Watch (The Breaking of Day Watch from 12:00 A.M. to 3:00 A.M.) (Lu 12:38)
Fourth Watch (The Morning Watch from 3:00 A.M. to 6:00 A.M.)..(Mt 14:25)
Fifth Watch (The Early Morning Watch from 6:00 A.M. – 9:00 A.M.)
Sixth Watch (9:00 A.M. to 12:00 P.M.)
The Seventh Watch (12:00 P.M. to 3:00 P.M.)
Eighth Watch (3:00 P.M. – 6:00 P.M.)
I would take all this with a grain of salt especially since watches 5-8 are not found in Scripture.