How to display the current time in c++

Several methods to display the current time in C: use time() to obtain the timestamp, use the std::chrono class to obtain the system time, use a third-party library (such as Boost.Date_Time)

How to display the current time in C

There are several ways to display the current time in C:

1. Use the standard library functiontime()

#include  #include  int main() { time_t now = time(0); std::cout << "Current time: " << ctime(&now); return 0; }

2. Use the classstd::chrono

#include  #include  int main() { auto now = std::chrono::system_clock::now(); auto time_t_now = std::chrono::system_clock::to_time_t(now); std::cout << "Current time: " << ctime(&time_t_now); return 0; }

3. Use third-party libraries

There are many third-party libraries that can help you display the current time, such as Boost.Date_Time:

#include  #include  int main() { boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); std::cout << "Current time: " << now; return 0; }

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