std::chrono::year_month_day::year, std::chrono::year_month_day::month, std::chrono::year_month_day::day

constexpr std::chrono::year year() const noexcept;	(1)	(since C++20)
constexpr std::chrono::month month() const noexcept;	(2)	(since C++20)
constexpr std::chrono::day day() const noexcept;	(3)	(since C++20)

Retrieves the year, month and day values stored in this year_month_day object.

1) Returns the stored std::chrono::year value.

2) Returns the stored std::chrono::month value.

3) Returns the stored std::chrono::day value.

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