static std::time_t to_time_t( const time_point& t ) noexcept; | (since C++11) |
Converts t
to a std::time_t
type.
If std::time_t
has lower precision, it is implementation-defined whether the value is rounded or truncated.
t | - | system clock time point to convert |
A std::time_t
value representing t
.
Get the current time as a std::time_t
two ways.
#include <iostream> #include <ctime> #include <chrono> #include <thread> using namespace std::chrono_literals; int main() { // The old way std::time_t oldt = std::time(nullptr); std::this_thread::sleep_for(2700ms); // The new way std::time_t newt = std::chrono::system_clock::to_time_t( std::chrono::system_clock::now()); std::cout << "oldt-newt == " << oldt-newt << " s\n"; }
Possible output:
oldt-newt == -3 s
[static] | converts std::time_t to a system clock time point (public static member function) |
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