将UTCTime转换为当地时间
问题描述:
我有UTCTimeStamp值{1507272767979279596},我想将其转换为人类可读的格式。将UTCTime转换为当地时间
例如 UTCTimestamp = 1507272767979279596 和 人类可读的形式是=星期五,2017年10月6日12:22:47.979 PM
是有在C++ STL或升压任何功能, 可以让我以上输出。
答
公平的警告:你看起来有一个奇怪的时区(+05:30?)。除此之外:
#include <ctime>
#include <string>
std::string usingStrftime(const time_t rawtime)
{
struct tm * dt = localtime(&rawtime);
char buffer[30];
strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", dt);
return std::string(buffer);
}
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/date_time/posix_time/conversion.hpp>
#include <boost/date_time/posix_time/ptime.hpp>
boost::posix_time::ptime as_ptime(uintmax_t ns) {
return {{1970,1,1}, boost::posix_time::microseconds(ns/1000)};
}
#include <iostream>
int main() {
std::cout << usingStrftime(1507272767) << "\n";
auto timestamp = as_ptime(1507272767979279596ull);
std::cout << timestamp << "\n";
std::cout.imbue(std::locale(std::cout.getloc(), new boost::posix_time::time_facet("%A %b %d, %Y %I:%M:%S %p")));
std::cout << timestamp << "\n";
}
打印
2017-10-06 06:52:47
2017-Oct-06 06:52:47.979279
Friday Oct 06, 2017 06:52:47 AM
'strftime'可以是溶液(可能[重复](https://*.com/questions/ 14436462/C-时间戳到人类可读-日期时间函数)?) – Vivick