std::chrono::utc_clock::from_sys

From cppreference.com
< cpp‎ | chrono‎ | utc clock
Date and time library
Time point
(C++11)
(C++20)
Duration
(C++11)
Clocks
(C++11)
(C++11)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
Time of day
(C++20)(C++20)
(C++20)(C++20)
(C++20)

Calendar
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)(C++20)
Time zone
(C++20)
(C++20)
(C++20) (C++20) (C++20) (C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
chrono I/O
(C++20)
C-style date and time
std::chrono::utc_clock
Member functions
utc_clock::from_sys
Time point I/O
Leap second insertion information
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

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)