# std::chrono Symbol Index

From cppreference.com
< cpp‎ | symbol index

This page tries to list all the symbols that are available from the standard library (date and time library) in the namespace std::chrono. The symbols are written as follows:

- Function names with `()`.
- Templates with `<>`.

##

> `A C D F G H I J L M N O P R S T U W Y Z`

### A

`abs<>()` (`std::chrono::duration`) (since C++17)
`ambiguous_local_time` (since C++20)
`April` (since C++20)
`August` (since C++20)

### C

`ceil<>()` (`std::chrono::duration`) (since C++17)
`ceil<>()` (`std::chrono::time_point`) (since C++17)
`choose` (since C++20)
`clock_cast<>()` (since C++20)
`clock_time_conversion`<> (since C++20)
`current_zone()` (since C++20)

### D

`day` (since C++20)
`December` (since C++20)
`duration`<> (since C++11)
`duration_cast<>()` (since C++11)
`duration_values`<> (since C++11)

### F

`February` (since C++20)
`file_clock` (since C++20)
`file_seconds` (since C++20)
`file_time` (since C++20)
`floor<>()` (`std::chrono::duration`) (since C++17)
`floor<>()` (`std::chrono::time_point`) (since C++17)
`Friday` (since C++20)
`from_stream<>()` (`std::chrono::day`) (since C++20)
`from_stream<>()` (`std::chrono::file_time`) (since C++20)
`from_stream<>()` (`std::chrono::gps_time`) (since C++20)
`from_stream<>()` (`std::chrono::local_time`) (since C++20)
`from_stream<>()` (`std::chrono::month`) (since C++20)
`from_stream<>()` (`std::chrono::month_day`) (since C++20)
`from_stream<>()` (`std::chrono::sys_time`) (since C++20)
`from_stream<>()` (`std::chrono::tai_time`) (since C++20)
`from_stream<>()` (`std::chrono::utc_time`) (since C++20)
`from_stream<>()` (`std::chrono::weekday`) (since C++20)
`from_stream<>()` (`std::chrono::year`) (since C++20)
`from_stream<>()` (`std::chrono::year_month`) (since C++20)
`from_stream<>()` (`std::chrono::year_month_day`) (since C++20)

### G

`get_leap_second_info` (since C++20)
`get_tzdb()` (since C++20)
`get_tzdb_list()` (since C++20)
`gps_clock` (since C++20)
`gps_seconds` (since C++20)
`gps_time` (since C++20)

### H

`hh_mm_ss`<> (since C++20)
`high_resolution_clock` (since C++11)
`hours` (since C++11)

### I

`is_am` (since C++20)
`is_clock`<> (since C++20)
`is_clock_v`<> (since C++20)
`is_pm` (since C++20)

### J

`January` (since C++20)
`July` (since C++20)
`June` (since C++20)

### L

`last` (since C++20)
`last_spec` (since C++20)
`leap_second` (since C++20)
`leap_second_info` (since C++20)
`local_info` (since C++20)
`local_seconds` (since C++20)
`local_t` (since C++20)
`local_time` (since C++20)
`local_time_format<>()` (since C++20)
`locate_zone()` (since C++20)

### M

`make12` (since C++20)
`make24` (since C++20)
`March` (since C++20)
`May` (since C++20)
`microseconds` (since C++11)
`milliseconds` (since C++11)
`minutes` (since C++11)
`Monday` (since C++20)
`month` (since C++20)
`month_day` (since C++20)
`month_day_last` (since C++20)
`month_weekday` (since C++20)
`month_weekday_last` (since C++20)

### N

`nanoseconds` (since C++11)
`nonexistent_local_time` (since C++20)
`November` (since C++20)

### O

`October` (since C++20)

### P

`parse<>()` (since C++20)

### R

`reload_tzdb()` (since C++20)
`remote_version()` (since C++20)
`round<>()` (`std::chrono::duration`) (since C++17)
`round<>()` (`std::chrono::time_point`) (since C++17)

### S

`Saturday` (since C++20)
`seconds` (since C++11)
`September` (since C++20)
`steady_clock` (since C++11)
`Sunday` (since C++20)
`sys_info` (since C++20)
`sys_days` (since C++20)
`sys_seconds` (since C++20)
`sys_time` (since C++20)
`system_clock` (since C++11)

### T

`tai_clock` (since C++20)
`tai_seconds` (since C++20)
`tai_time` (since C++20)
`Thursday` (since C++20)
`time_point`<> (since C++11)
`time_point_cast<>()` (since C++11)
`time_zone()` (since C++20)
`time_zone_link` (since C++20)
`treat_as_floating_point`<> (since C++11)
`treat_as_floating_point_v`<> (since C++17)
`Tuesday` (since C++20)
`tzdb` (since C++20)
`tzdb_list` (since C++20)

### U

`utc_clock` (since C++20)
`utc_seconds` (since C++20)
`utc_time` (since C++20)

### W

`Wednesday` (since C++20)
`weekday` (since C++20)
`weekday_indexed` (since C++20)
`weekday_last` (since C++20)

### Y

`year` (since C++20)
`year_month` (since C++20)
`year_month_day` (since C++20)
`year_month_day_last` (since C++20)
`year_month_weekday` (since C++20)
`year_month_weekday_last` (since C++20)

### Z

`zoned_seconds` (since C++20)
`zoned_time`<> (since C++20)
`zoned_traits`<> (since C++20)

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