29 Time library [time]

29.9 Class template hh_­mm_­ss [time.hms]

29.9.3 Non-members [time.hms.nonmembers]

template<class charT, class traits, class Duration> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const hh_mm_ss<Duration>& hms);
Effects: Equivalent to: return os << format(os.getloc(), STATICALLY-WIDEN<charT>("{:L%T}"), hms);
[Example 1: for (auto ms : {-4083007ms, 4083007ms, 65745123ms}) { hh_mm_ss hms{ms}; cout << hms << '\n'; } cout << hh_mm_ss{65745s} << '\n';
Produces the output (assuming the "C" locale): -01:08:03.007 01:08:03.007 18:15:45.123 18:15:45
— end example]