# std::chrono::hh_mm_ss<Duration>::hh_mm_ss

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< cpp‎ | chrono‎ | hh mm ss

constexpr hh_mm_ss() noexcept : hh_mm_ss{Duration::zero()} {} | (1) |
constexpr explicit hh_mm_ss( Duration d ); | (2) |

Constructs a `hh_mm_ss` object.

1) Constructs a `hh_mm_ss` object corresponding to `Duration::zero()`.
2) Constructs a `hh_mm_ss` object corresponding to `d`:

- is_negative() returns d < Duration::zero().
- hours() returns std::chrono::duration_cast<std::chrono::hours>(abs(d)).
- minutes() returns std::chrono::duration_cast<std::chrono::minutes>(abs(d) - hours()).
- seconds() returns
  std::chrono::duration_cast<std::chrono::seconds>(abs(d) - hours() - minutes()).
- subseconds() returns abs(d) - hours() - minutes() - seconds() if std::chrono::treat_as_floating_point_v<precision::rep> is true; otherwise it returns std::chrono::duration_cast<precision>(abs(d) - hours() - minutes() - seconds()).

### Parameters

d | - | the duration to be broken down.

### Example

| This section is incomplete Reason: no example

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