char buffer[64];
time_t now;
time (&now);
struct tm* tm = localtime (&now);
strftime (buffer, 64, "%Y-%m-%dT%I:%M:%S+00:00", tm);
issue_date = string (buffer);
char buffer[64];
time_t now;
time (&now);
struct tm* tm = localtime (&now);
strftime (buffer, 64, "%Y-%m-%dT%I:%M:%S+00:00", tm);
issue_date = string (buffer);