--- title: "duration_values" --- {{< callout type="info">}} Header: `chrono.h` From: `20.41.0` Similar to: [std::chrono::duration_values](https://en.cppreference.com/w/cpp/chrono/duration_values.html) {{< /callout >}} Templates representing a time interval. ## duration_values ```cpp template struct duration_values ``` ```cpp ETL_NODISCARD static ETL_CONSTEXPR TRep zero() ETL_NOEXCEPT ``` **Return** `TRep(0)` --- ```cpp ETL_NODISCARD static ETL_CONSTEXPR14 TRep min() ETL_NOEXCEPT ``` **Return** `etl::numeric_limits::min()` --- ```cpp ETL_NODISCARD static ETL_CONSTEXPR14 TRep max() ETL_NOEXCEPT ``` **Returns** `etl::numeric_limits::max()`