c++ unix time to string

#include <chrono>
#include <iomanip>
#include "bits/stdc++.h"

using namespace std;
using namespace chrono;  

std::uint32_t time_date_stamp = 1484693089;

std::time_t temp = time_date_stamp;
std::tm* t = std::gmtime(&temp);
std::stringstream ss; // or if you're going to print, just input directly into the output stream
ss << std::put_time(t, "%Y-%m-%d %I:%M:%S %p");
std::string output = ss.str();

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