std::chrono::hh_mm_ss

From cppreference.com

Compiler support
Freestanding and hosted
Language
Standard library
Standard library headers
Named requirements
Feature test macros(C++20)
Language support library
Concepts library(C++20)
Diagnostics library
Memory management library
Metaprogramming library(C++11)
General utilities library
Containers library
Iterators library
Ranges library(C++20)
Algorithms library
Strings library
Text processing library
Numerics library
Date and time library
Input/output library
Filesystem library(C++17)
Concurrency support library(C++11)
Execution control library(C++26)
Technical specifications
Symbols index
External libraries

[edit]

Date and time library

Time point
time_point (C++11)
clock_time_conversion (C++20)
clock_cast (C++20)
Duration
duration (C++11)
Clocks
system_clock (C++11)
steady_clock (C++11)
is_clock (C++20)
utc_clock (C++20)
tai_clock (C++20)
high_resolution_clock (C++11)
gps_clock (C++20)
file_clock (C++20)
local_t (C++20)
Time of day
is_amis_pm (C++20)(C++20)
make12make24 (C++20)(C++20)
hh_mm_ss (C++20)

Calendar
day (C++20)
month (C++20)
year (C++20)
weekday (C++20)
operator/ (C++20)
year_month_day (C++20)
year_month_day_last (C++20)
year_month_weekday (C++20)
year_month_weekday_last (C++20)
weekday_indexed (C++20)
weekday_last (C++20)
month_day (C++20)
month_day_last (C++20)
month_weekday (C++20)
month_weekday_last (C++20)
year_month (C++20)
last_speclast (C++20)(C++20)
`chrono` I/O
parse (C++20)

Time zone
tzdb (C++20)
tzdb_list (C++20)
get_tzdbget_tzdb_listreload_tzdbremote_version (C++20)(C++20)(C++20)(C++20)
sys_info (C++20)
local_info (C++20)
nonexistent_local_time (C++20)
ambiguous_local_time (C++20)
locate_zone (C++20)
current_zone (C++20)
time_zone (C++20)
choose (C++20)
zoned_traits (C++20)
zoned_time (C++20)
time_zone_link (C++20)
leap_second (C++20)
leap_second_info (C++20)
get_leap_second_info (C++20)
C-style date and time

[edit]

std::chrono::hh_mm_ss

Member functions
hh_mm_ss::hh_mm_ss
hh_mm_ss::is_negativehh_mm_ss::hourshh_mm_ss::minuteshh_mm_ss::secondshh_mm_ss::subseconds
hh_mm_ss::operator precisionhh_mm_ss::to_duration
Non-member functions
operator<<
Helper classes
formatter<std::chrono::hh_mm_ss>

[edit]

Defined in header`<chrono>`
template<class Duration> class hh_mm_ss;		(since C++20)

The class templatehh_mm_ss splits astd::chrono::duration into a "broken down" time such ashours:minutes:seconds, with the precision of the split determined by theDuration template parameter. It is primarily a formatting tool.

Duration must be a specialization ofstd::chrono::duration, otherwise the program is ill-formed.

[edit]Member constants

constexpr unsigned fractional_width

[static]

the smallest possible integer in the range[0, 18] such thatprecision (see below) will exactly represent the value ofDuration{1}, or6 if there's no such integer
(public static member constant)

[edit]Member types

Member type	Definition
`precision`	std::chrono::duration<std::common_type_t<Duration::rep, std::chrono::seconds::rep>, std::ratio<1,10`^{fractional_width}`>>

[edit]Member functions

(constructor)	constructs a`hh_mm_ss` (public member function)[edit]
is_negativehoursminutessecondssubseconds	obtains components of the broken-down time (public member function)[edit]
operator precisionto_duration	obtains the storedstd::chrono::duration (public member function)[edit]