Does the timestamp seen in LS-l change the time or generate the time?

This problem has plagued me for a while. However, I haven't found the answer because I haven't used it yet.
At noon, I reviewed the Solaris ls manual and found that the timestamp displayed in LS-L is the last modification time.
If the file was modified six months ago, the timestamp is only displayed as the localized "month, day, and year", and the time is displayed as the month and day.
In the Chinese UTF-8 system, the format is displayed six months ago as "2005,", and the format is "24 hours, month, and day.
The original article is as follows:
-L lists in long format, giving mode, ACL indica-
Tion, number of links, owner, group, size in
Bytes, and time of last modification for each
File (see above). If the file is a special
File, the size field instead contains the major
And minor device numbers. If the time of last
Modification is greater than six months ago, it
Is shown in the format 'month date year'
The POSIX locale. When the lc_time locale
Category is not set to the POSIX locale, a dif-
Ferent format of the time field can be used.
Files modified within six months show 'month
Date time'. If the file is a symbolic link,
Filename is printed followed by "->" and
Path Name of the referenced file.