std::chrono::year_month_weekday_last:: year, std::chrono::year_month_weekday_last:: month, std::chrono::year_month_weekday_last:: weekday, std::chrono::year_month_weekday_last:: weekday_last

From cppreference.com
Utilities library
General utilities
Relational operators (deprecated in C++20)
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 :: weekday weekday ( ) const noexcept ;
(3) (since C++20)
constexpr std:: chrono :: weekday_last weekday_last ( ) const noexcept ;
(4) (since C++20)

Retrieves the field values stored in this year_month_weekday_last object.

Return value

1) Returns the stored std::chrono::year value.
2) Returns the stored std::chrono::month value.
3) Returns the stored std::chrono::weekday value.

Example

#include <chrono>
#include <iostream>
using namespace std::chrono;
 
int main()
{
    auto ymwdl{Tuesday[last]/November/2022};
    auto wdl = ymwdl.weekday_last();
    wdl = (wdl.weekday() + days(1))[last];
    ymwdl = {ymwdl.year() + years(1), ymwdl.month() - months(2), wdl};
    std::cout << year_month_day(ymwdl) << '\n';
}

Output:

2023-09-27