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std::chrono::utc_clock::from_sys

From cppreference.com
< cpp‎ | chrono‎ | utc clock
 
 
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template <class Duration>

static std::chrono::utc_time<std::common_type_t<Duration, std::chrono::seconds>>

    from_sys(const std::chrono::sys_time<Duration>& t);
(since C++20)

Converts a sys_time t to a utc_time u that represents the same point in time.

u.time_since_epoch() - t.time_since_epoch() is equal to the number of leap seconds that was inserted between t and 1 January 1970. If t is the exact date of a leap second insertion, that leap second is counted as inserted.

[edit] Return value

A utc_time representing the same point in time as t.

[edit] See also

[static]
converts utc_time to sys_time
(public static member function) [edit]
convert time points of one clock to another
(function template) [edit]