Egg or Chicken in Laravel-Eloquent?

Question

Laravel

Hi all.
I spend the whole day planning a new project and creating database and model migrations in laravel.
The logic of tables and the verbal meaning of links in laravel does not converge in my head (maybe just tired?)
There is a good standard example: Post::Comments
Post

id
text

Comment

id
text
post_id

Post hasMany Comments <-> Comment belongsTo Post
Here, in principle, everything is clear and logical.
But here I have a real example:
Table Product

id
name
period_id

Table Period (time period)

id
name

Time table

id
from
to

My problem is in the logic of connection between Period & Time:
Period consists of time. According to my logic, I refer from the Period to the time, i.e. in the time_id period table,
but verbally the language does not turn to say Period belongsTo Time <-> Time hasOne Period
Technically, I can use both options, but I want to understand and understand.
When answering, please explain the logic of your choice. Thanks a lot.
UPDATE:
Another example:
Position

id
name

point

id
x
y

Logically, in order to describe the position of a rectangular figure, two links are needed in the position: start_point_id & end_point_id both refer to Point
but verbally again garbage:
Position belongsTo Point <-> Point hasOne Position

Answer 1

Time from - to = this is the period.
What for still the table with any name?
Why not in one table for example.
Why not automatically count from - to and output "name".
The problem could have been better explained. You ask about logic, but do not explain what logic should do.

Answer 2

Well, apparently you get a one-to-one connection, you should think, why is it?