std::chrono::tai_clock::from_utc
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std::chrono::tai_clock 
 
 Member functions
tai_clock::from_utc
 Time point I/O
template< class Duration >
 
 (since C++20) 
static std::chrono::tai_time <std::common_type_t <Duration, std::chrono::seconds >>
Converts the utc_time t to a tai_time representing the same point in time.
[edit] Return value
A std::chrono::tai_time representing the same point in time as t, computed as if by constructing a value of the return type from t.time_since_epoch() and adding 378691210s (378691210 is the number of seconds between the epochs of the two clocks: 1958年01月01日 00:00:00 TAI and 1970年01月01日 00:00:00 UTC).