What does the 25th day mean?

Daytime interpretation:

One day; Period; day

Every day; Often during the day.

During the day; daily

Phrases:

Father's day? Father's day; The third Sunday in June is Father's Day; Father's day; destroyer

Mother's day? Mother's day; Mother's day; Mother's Day, the second day of June.

Discrimination of words:

Both "day" and "day and date" have the meaning of "day", and their differences are as follows:

Day? Refers to any day, or a day with the meaning of "one day and one night", or a working day. Time and period can be represented by complex numbers.

Dating? Does it refer to the specific year, month and day, or to the age and era?