# std::chrono::year_month_day_last

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< cpp‎ | chrono

Defined in header `<chrono>` |  |
class year_month_day_last; |  | (since C++20)

The class `year_month_day_last` represents the last day of a specific year and month. It is a field-based time point, with a resolution of std::chrono::days, subject to the limit that it can only represent the last day of a month.

std::chrono::years- and std::chrono::months-oriented arithmetic are supported directly. An implicit conversion to std::chrono::sys_days allows std::chrono::days-oriented arithmetic to be performed efficiently.

`year_month_day_last` is a TriviallyCopyable StandardLayoutType.

### Member functions

(constructor) | constructs a `year_month_day_last` object (public member function)
operator+=operator-= | modifies the time point by some number of months or years (public member function)
yearmonthdaymonth_day_last | accesses the fields of this object (public member function)
operator sys_daysoperator local_days | converts to a std::chrono::time_point (public member function)
ok | checks whether this object represents a valid date (public member function)

### Nonmember functions

operator==operator!=operator<operator<=operator>operator>= | compares two `year_month_day_last` objects (function)
operator+operator- | adds or subtracts a `year_month_day_last` and some number of years or months (public member function)
operator<< | outputs a `year_month_day_last` into a stream (function template)

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