time.h | time(0) and localtime(time_t) combinations returns previous time if time zone changed in between

Question

Running the below code as per steps, time(0) and localtime() combinations returns different time.

Versions used - C v60 (visual studio 15)

int main()
{
    time_t t = time(0);      // Line 1
    tm *t2 = localtime(&t);  // Line 2
    //codes                  // Line 3
    time_t t1 = time(0);     // Line 4
    tm *t4 = localtime(&t1); // Line 5
    return 0;
}

Steps:

• Line 1 - Current time zone UTC+00 - 11.40 am (Before time zone change)
• Line 2 - Returns UTC +00 - 11.40 am (As Expected)
• Line 3 - Some other codes. And assume time zone is changed to UTC-01 by some external events. (Time zone Change)
• Line 4 - As time zone is changed, expected time is UTC-01 - 10.40am.
• Line 5 - Returns UTC +00 - 11.40 am (Not as expected)

functions _tstrtime() /_strtime() are returning UTC-01 - 10.40 am at Line 4/5 (expected)

Additionally, I've tried using std::time() and std::localtime() from c++, getting the same behaviour

Question : How to get the correct time even when the system's time zone is getting changed in between ?