std::chrono::month_day_last:: month

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chrono I/O
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C-style date and time
std::chrono::month_day_last
constexpr std:: chrono :: month month ( ) const noexcept ;
(since C++20)

Retrieves a copy of the std::chrono::month object stored in * this .

Return value

A copy of the std::chrono::month object stored in * this .

Example

Run this code 
#include <chrono>
#include <iostream>
 
using namespace std::chrono;
 
int main()
{
    std::cout << std::boolalpha;
 
    auto mdl{February/last}; // Last day of a February
    auto ymdl{year(2020) / mdl};
    std::cout << (year_month_day{ymdl} == year_month_day{February/29/2020}) << ' ';
 
    mdl = (mdl.month() + months(1)) / last; // Last day of the next month, in 2020
    ymdl = year(2020) / mdl;
    std::cout << (year_month_day{ymdl} == year_month_day{March/31/2020}) << '\n';
}

Output: 

true true
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