# std::chrono::year_month_weekday

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< cpp‎ | chrono

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

The class `year_month_weekday` represents the n-th weekday of a specific year and month. It is a field-based time point, with a resolution of std::chrono::days. std::chrono::years- and std::chrono::months-oriented arithmetic are supported directly. An implicit conversion to and from std::chrono::sys_days allows std::chrono::days-oriented arithmetic to be performed efficiently.

`year_month_weekday` is a TriviallyCopyable StandardLayoutType.

### Member functions

(constructor) | constructs a `year_month_weekday` (public member function)
operator+=operator-= | modifies the time point by some number of months or years (public member function)
yearmonthweekdayindexweekday_indexed | 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!= | compares two `year_month_weekday` objects (function)
operator+operator- | adds or subtracts a `year_month_weekday` and some number of years or months (function)
operator<< | outputs a `year_month_weekday` into a stream (function template)

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