JLPT N5Copula
Furigana
だ・
These endings complete an affirmative sentence whose main description is a noun. Use だ in plain style and です in polite style.
What these endings express
The noun can identify or classify someone or something, but the pattern is not limited to simple identity. It also gives occupations, nationalities, ages, names, times, dates, and similar noun-based descriptions.
The same statement in two styles
The basic meaning stays the same; the relationship and situation determine which style fits.
Nonpast does not mean only right now
These forms can describe the present, a general fact, or a future situation made clear by context. Japanese does not require a separate future ending here.