std::chrono::tai_clock::to_utc

 

C++

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Feature test macros (C++20)

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General utilities Date and time Function objects Formatting library (C++20) bitset hash (C++11) Relational operators (deprecated in C++20) rel_ops::operator!=rel_ops::operator> rel_ops::operator<=rel_ops::operator>= Integer comparison functions cmp_equalcmp_lesscmp_less_than (C++20)(C++20)(C++20)    cmp_not_equalcmp_greatercmp_greater_than (C++20)(C++20)(C++20) in_range (C++20) Swap and type operations swap ranges::swap (C++20) exchange (C++14) declval (C++11) to_underlying (C++23) forward (C++11) forward_like (C++23) move (C++11) move_if_noexcept (C++11) as_const (C++17) Common vocabulary types pair tuple (C++11) optional (C++17) any (C++17) variant (C++17) tuple_size (C++11) tuple_element (C++11) apply (C++17) make_from_tuple (C++17) expected (C++23) Elementary string conversions to_chars (C++17) from_chars (C++17) chars_format (C++17)

 

Date and time utilities

Time point
time_point (C++11)	clock_time_conversion (C++20)	clock_cast (C++20)
Duration
duration (C++11)
Clocks
system_clock (C++11) steady_clock (C++11) high_resolution_clock (C++11)	is_clock (C++20) utc_clock (C++20) tai_clock (C++20)	gps_clock (C++20) file_clock (C++20) local_t (C++20)
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chrono I/O
parse (C++20)
C-style date and time

 

std::chrono::tai_clock

Member functions

tai_clock::now

tai_clock::to_utc

tai_clock::from_utc

Time point I/O

operator<<

formatter<std::chrono::tai_time>

from_stream

 

template< class Duration > static std::chrono::utc_time<std::common_type_t<Duration, std::chrono::seconds>>     to_utc( const std::chrono::tai_time<Duration>& t ) noexcept;		(since C++20)

Converts the tai_time t to a utc_time representing the same point in time.

Return value

A std::chrono::utc_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 subtracting 378691210s. (378691210 is the number of seconds between the epochs of the two clocks: 1958-01-01 00:00:00 TAI and 1970-01-01 00:00:00 UTC.)

See also

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