std::chrono::leap_second_info
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                    |   Defined in header  <chrono>
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|   struct leap_second_info {     bool is_leap_second;  | 
(since C++20) | |
A leap_second_info indicates whether a UTC time is during a positive leap second insertion and the total number of leap seconds between 1 January 1970 and the UTC time.
leap_second_info has no base classes or members other than is_leap_second, elapsed, and implicitly declared special member functions.
Member objects
|    is_leap_second  | 
   whether the UTC time is during a positive leap second insertion  (public member object)  | 
|    elapsed  | 
   the sum of leap seconds between 1 January 1970 and the UTC time  (public member object)  | 
Notes
leap_second_info is typically obtained from std::chrono::get_leap_second_info.
See also
|    (C++20)  | 
  contains information about a leap second insertion   (class)  |