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std::chrono::utc_clock:: from_sys

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C++
Date and time library
std::chrono::utc_clock
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.

Return value

A utc_time representing the same point in time as t .

See also

[static]
converts utc_time to sys_time
(public static member function)
(C++20)
convert time points of one clock to another
(function template)