Am I doing something wrong? I expected roughly the same time when running the musl version. $ cat test_ctime.c #include #include int main() { time_t t = time(0); printf("%s", ctime(&t)); } $ $ gcc test_ctime.c -o test_ctime $ test_ctime Thu May 1 16:33:16 2014 $ $ musl-gcc -fno-stack-protector test_ctime.c -o test_ctime $ test_ctime Thu May 1 20:33:46 2014 $