Yes it is because it is
As an adjective, "next" describes something that is immediately following in time or order, such as in the phrase "the next train." As an adverb, it indicates a subsequent action or event, as in "I will call you next." In both cases, it conveys a sense of proximity or succession.
the next day
It can be both.
An adverb of time. "Soon" does not describe how frequently something happens as a habit. "Soon" means "a short time in the future" which is a description of time.
Is 'almost' an adverb of time, referring to manner of time or frequency?
it is an adverb of time
No and yes next is an adjective also an adverb
As an adjective, "next" describes something that is immediately following in time or order, such as in the phrase "the next train." As an adverb, it indicates a subsequent action or event, as in "I will call you next." In both cases, it conveys a sense of proximity or succession.
the next day
An adverb of place does not really have to come after an adverb of time.
Yes, tonight is an adverb. It is an adverb of time (point in time).
No, it is an adverb of indefinite time. This is another type of adverb of time.
It can be both.
adverb of time
yes finally is a adverb of time.
The word "weekly" is an adverb. It is an adverb of definite time.
No. It is an adverb of time, although it is a nonspecific time.