I guess. "One" is shorter than "hundred" in English while it's the other way in Polish (jeden vs sto).
I was very surprised that English people say "fifteen hundred" for 1500, I never thought about that number this way before, it was always "tysiąc pięćset" (one thousand five hundred).
Most English speakers say the year is "fifteen hundred", but it's mostly American people who say "fifteen hundred" in other cases.
en-GB: Today is the thirty-first of August, twenty twenty. The USA has reported an additional one thousand, seven hundred and seventy one Covid-nineteen cases. I would normally leave work around five-thirty, since I can catch the seventeen forty-five train home and watch the end of the six o'clock news. If I miss the train, I might take the two thirty bus instead [i.e. bus 230], or else the one three five.
I was very surprised that English people say "fifteen hundred" for 1500, I never thought about that number this way before, it was always "tysiąc pięćset" (one thousand five hundred).