Time display format

[Typehello]

I want my time to print only in hh:mm:ss format ... I don't want date and year

#include<iostream>
#include <ctime>

using namespace std;
  
int main()
{
    time_t tt = time(0);
  
    cout<<"time is -- > "<<ctime(&tt);

    return 0;
}

output is like this::

time is -- > Sun Jan 23 20:17:08 2022

I want it like this::

time is -- > 20:17:08

Please help me!!

[jonnin]

they just added this to c++ in 20. If your compiler is up to date, you can use it:

https://en.cppreference.com/w/cpp/chrono/hh_mm_ss
and some examples (wanting just the seconds field)
https://stackoverflow.com/questions/60046147/how-to-convert-chronoseconds-to-string-in-hhmmss-format-in-c
https://docs.microsoft.com/en-us/cpp/standard-library/hhmmss-class?view=msvc-170

to do it using the C functions see this one:
https://www.cplusplus.com/reference/ctime/strftime/

[Typehello]

I am getting so many errors. I guess my compiler is not up to date.

can you suggest something else @jonnin

[salem c]

Use strftime() if you want fine detailed control over the output format.
https://www.cplusplus.com/reference/ctime/strftime/

[seeplus]

The format returned from ctime() is fixed (www mmm dd hh:mm:ss yyyy). So to just display the time then simply:

#include <iostream>
#include <ctime>
#include <string_view>

using namespace std;

int main() {
	const auto tt {time(0)};

	cout << "time is -- > " << std::string_view(ctime(&tt) + 11, 8) << '\n';
}

Note that ctime() overwrites the same internal buffer every time it is used.