I was reading a text at lang-8 and it got me wondering:
This time of the year, when the weather has finally changed from warm and pleasant to cold and windy, is a perfect time to think about new items for interior decoration.
Would this use of the indefinite article be okay, or is it better to use the:
This time of the year, when the weather has finally changed from warm and pleasant to cold and windy, is the perfect time to think about new items for interior decoration.
According to Google Ngram, "it's the perfect time" is used twice as often as "it's a perfect time", but that tells me nothing about the possible nuances of meaning.. Curiously, according to the Ngram, both expressions sprang into existence in the second half of the 20th century.
Is it that with "a perfect time" we allow that other "perfect times" will occur later or have occurred before, while with "the perfect time" we insist on the absolute uniqueness of this "time"?