Question

How to convert Unix timestamp (epoch) to date in C

Answer 1

#include <stdio.h>
#include <time.h>

int main(void)
{
    time_t epoch = 1789575292;

    struct tm tms = *localtime(&epoch);
    
    // Format: ddd yyyy-mm-dd hh:mm:ss zzz
    char buf[64];
    strftime(buf, sizeof(buf), "%a %Y-%m-%d %H:%M:%S %Z", &tms);
    
    printf("%s\n", buf);
    
    return 0;
}



/*
run:

Wed 2026-09-16 16:14:52 UTC

*/

 

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