Locale Helper: en

- Title (title)	English locale for the USA glibc-HEAD
- Source organisation (source) Organization name of provider of the source.	Free Software Foundation, Inc. glibc-HEAD
- Organization postal address (address)	https://www.gnu.org/software/libc/ glibc-HEAD
- Contact name (contact) Name of contact person.	glibc-HEAD
- Email address (email) Electronic mail address of the organization, or contact person.	bug-glibc-locales@gnu.org glibc-HEAD
- Telephone number (tel) Telephone number for the organization, in international format.	glibc-HEAD
- Fax number (fax) Fax number for the organization, in international format.	glibc-HEAD
- Language (language)	American English glibc-HEAD
- Territory (territory)	United States glibc-HEAD
- Revision (revision) Ex.: 1.0	1.0 glibc-HEAD
- Date (date) ISO format (2006-03-24)	2000-06-24 glibc-HEAD

This interface doesn't currently allow character type editing. It just uses the content:

copy "i18n"

translit_start
include "translit_combining";""
translit_end

copy "en_GB"

This interface does not currently allow collation editing. It just uses the "iso14651_t1" set.

copy "iso14651_t1"

The LC_TIME category defines the rules and symbols that are used to format date and time information.

Note: ISO 8601 allows different formats for dates, one form is YYYY-MM-DD, another is YYYYMMDD. Each clause in this specification specifies which specific format of ISO 8601 that is used there.

- Month names (mon) Define the full month names, to be referenced by the %B field descriptor. The operand consists of twelve or thirteen semicolon- separated strings. The first string is the full name of the first month of the year (January), the second the full name of the second month, and so on.	January February March April May June July August September October November December glibc-HEAD
- Month abbreviations (abmon) Define the abbreviated month names, to be referenced by the %b field descriptor. The operand consists of twelve or thirteen semicolon-separated strings. The first string is the abbreviated name of the first month of the year (January), the second the abbreviated name of the second month, and so on.	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec glibc-HEAD
- Weekday names (day) Define the full weekday names for calendar systems with weeks of constant length, to be referenced by the %A field descriptor. The length of the week and a Gregorian date for the first weekday is defined by the "week" keyword. The operand consists of semicolon- separated strings. The first string is the full name of the day corresponding to the first day of the week (default Sunday), the second the full name of the day corresponding to the second day of the week (default Monday), and so on.	Sunday Monday Tuesday Wednesday Thursday Friday Saturday glibc-HEAD
- Days abbreviated (abday) Define the abbreviated weekday names for calendar systems with weeks of constant length, to be referenced by the %a field descriptor. The length of the week and a Gregorian date for the first weekday is defined by the "week" keyword. The operand consists of semicolon- separated strings. The first string is the abbreviated name of the day corresponding to the first day of the week (default Sunday), the second the abbreviated name of the day corresponding to the second day of the week (default Monday), and so on.	Sun Mon Tue Wed Thu Fri Sat glibc-HEAD	Example: `Sun\nMon\nTue\nWed\nThu\nFri\nSat`
- Week definition (week) Is used to define the number of days in a week, and which weekday is the first weekday (the first weekday has the value 1), and which week is to be considered the first in a year. The first operand is an integer specifying the number of days in the week. The second operand is an integer specifying the Gregorian date in the format YYYYMMDD, and it specifies a day that is a first weekday (all other first weekdays may then be calculated by adding or subtracting a whole multiplum of the number of days in the week as specified with the first operand). The third operand is an integer specifying the weekday number to be contained in the first week of the year. The third operand may also be understood as the number of days required in a week for it to be considered the first week of the year. If the keyword is not specified the values are taken as 7, 19971130 (a Sunday), and 7 (Saturday), respectively. ISO 8601 conforming applications should use the values 7, 19971201 (a Monday), and 4 (Thursday), respectively.	7;19971130;1 glibc-HEAD
- Date and Time format (d_t_fmt) Define the appropriate date and time representation, to be referenced by the %c field descriptor. The operand consists of a string, and can contain any combination of characters and field descriptors.	%a %d %b %Y %r %Z glibc-HEAD	Example: `%a %d %b %Y %r %Z (=Thu 04 Aug 2006 09:00am CET)` Approx. output of current value: Tue 04 Dec 2025 01:12:27 PM CET
- Date format (d_fmt) Define the appropriate date representation, to be referenced by the %x field descriptor. The operand consists of a string, and can contain any combination of characters and field descriptors.	%m/%d/%Y glibc-HEAD	Example: `%m/%d/%Y` Approx. output of current value: 11/04/2025
- Time format (t_fmt) Define the appropriate time representation, to be referenced by the %X field descriptor. The operand consists of a string, and can contain any combination of characters and field descriptors.	%r glibc-HEAD	Example: `%r` Approx. output of current value: 01:12:27 PM
- AM/PM designations (am_pm) Define the appropriate representation of the ante meridiem and post meridiem strings, to be referenced by the %p field descriptor. The operand consists of two strings, separated by a semicolon. The first string represents the antemeridiem designation, the last string the postmeridiem designation. The keyword is optional. If unspecified, the %p field descriptor refers to the empty string.	AM PM glibc-HEAD	Example: `AM\nPM`
- 12-hour Time format (t_fmt_ampm) Define the appropriate time representation in the 12-hour clock format with "am_pm", to be referenced by the %r field descriptor. The operand consists of a string and can contain any combination of characters and field descriptors. If the string is empty, the 12-hour format is not supported in the FDCC-set.	%I:%M:%S %p glibc-HEAD	Example: `%I:%M:%S %p` Approx. output of current value: 01:12:27 PM
- Long date and time format (date_fmt) Default format used by date(1) utility. See field descriptors.	%a %b %e %r %Z %Y glibc-HEAD	Example: `%a %b %e %H:%M:%S %Z %Y` Approx. output of current value: Tue Dec 4 01:12:27 PM CET 2025

The LC_NUMERIC category defines the rules and symbols that are used to format nonmonetary numeric information. The operands are strings. For some keywords, the strings only can contain integers. Keywords that are not provided, string values set to the empty string (""), or integer keywords set to -1, are used to indicate that the value is unspecified.

- Decimal point (decimal_point) The operand is a string containing the symbol that is used as the decimal delimiter in numeric, nonmonetary formatted quantities. This keyword cannot be omitted and cannot be set to the empty string. In contexts where other standards limit the decimal point to a single byte, the result of specifying a multibyte operand is unspecified.	. glibc-HEAD
- Thousands separator (thousands_sep) The operand is a string containing the symbol that is used as a separator for groups of digits to the left of the decimal delimiter in numeric, nonmonetary formatted monetary quantities. In contexts where other standards limit the "thousands_sep" to a single byte, the result of specifying a multibyte operand is unspecified.	, glibc-HEAD
- Digits grouping (grouping) Define the size of each group of digits in formatted non- monetary quantities. The operand is a sequence of integers separated by semicolons. Each integer specifies the number of digits in each group, with the initial integer defining the size of the group immediately preceding the decimal delimiter, and the following integers defining the preceding groups. If the last integer is not -1, then the size of the previous group (if any) is repeatedly used for the remainder of the digits. If the last integer is -1, then no further grouping is performed.	3;3 glibc-HEAD

- Symbol of currency (currency_symbol) One or more strings separated by semicolons that are used as the local currency symbol.	$ glibc-HEAD
- International currency symbol (int_curr_symbol) One or more strings separated by semicolons that are used as the international currency symbols. Each operand is a four character string, with the first three characters containing the alphabetic international currency symbol in accordance with those specified in ISO 4217, Codes for the representation of currencies and funds. The fourth character is the character used to separate the international currency symbol from the monetary quantity. The keyword is specified, unless the "copy" keyword is used.	USD glibc-HEAD
- Monetary decimal point (mon_decimal_point) The operand is a string containing the symbol that is used as the decimal delimiter in monetary formatted quantities. In contexts where other standards limit the "mon_decimal_point" to a single byte, the result of specifying a multibyte operand is unspecified. The keyword is specified, unless the "copy" keyword is used.	. glibc-HEAD
- Monetary thousands separator (mon_thousands_sep) The operand is a string containing the symbol that is used as a separator for groups of digits to the left of the decimal delimiter in formatted monetary quantities. In contexts where other standards limit the "mon_thousands_sep" to a single byte, the result of specifying a multibyte operand is unspecified. The keyword is specified, unless the "copy" keyword is used.	, glibc-HEAD
- Monetary digits grouping (mon_grouping) Define the size of each group of digits in formatted monetary quantities. The operand is a sequence of integers separated by semicolons. Each integer specifies the number of digits in each group, with the initial integer defining the size of the group immediately preceding the decimal delimiter, and the following integers defining the preceding groups. If the last integer is not -1, then the size of the previous group (if any) is repeatedly used for the remainder of the digits. If the last integer is -1, then no further grouping is performed. The keyword is specified, unless the "copy" keyword is used.	3;3 glibc-HEAD
- Positive sign (positive_sign) A string that is used to indicate a nonnegative-valued formatted monetary quantity. The keyword is specified, unless the "copy" keyword is used.	glibc-HEAD
- Negative sign (negative_sign) A string that is used to indicate a negative-valued formatted monetary quantity. The keyword is specified, unless the "copy" keyword is used.	- glibc-HEAD
- Fractional digits (frac_digits) One or more integers separated by semicolons, representing the number of fractional digits (those to the right of the decimal delimiter) to be written in a formatted monetary quantity using "currency_symbol". The keyword is specified, unless the "copy" keyword is used.	2 glibc-HEAD
- Fractional digits (International) (int_frac_digits) One or more integers separated by semicolons, representing the number of fractional digits (those to the right of the decimal delimiter) to be written in a formatted monetary quantity using "int_curr_symbol".	2 glibc-HEAD
- Currency symbol precedes (p_cs_precedes) Set to 1 if the "currency_symbol" precedes the value for a nonnegative formatted monetary quantity, and set to 0 if the symbol succeeds the value. The keyword is specified, unless the "copy" keyword is used.	1 glibc-HEAD
- Space separation between symbol and value (p_sep_by_space) Set to 0 if no space separates the "currency_symbol" from the value for a nonnegative formatted monetary quantity, set to 1 if a space separates the symbol from the value, and set to 2 if a space separates the symbol and the sign string, if adjacent. The keyword is specified, unless the "copy" keyword is used.	0 glibc-HEAD
- Currency symbol precedes (neg) (n_cs_precedes) Set to 1 if the "currency_symbol" precedes the value for a negative formatted monetary quantity, and set to 0 if the symbol succeeds the value. The keyword is specified, unless the "copy" keyword is used.	1 glibc-HEAD
- Space separation between symbol and value (neg) (n_sep_by_space) Set to 0 if no space separates the "currency_symbol" from the value for a negative formatted monetary quantity, set to 1 if a space separates the symbol from the value, and set to 2 if a space separates the symbol and the sign string, if adjacent. The keyword is specified, unless the "copy" keyword is used.	0 glibc-HEAD
- Position of positive sign (p_sign_posn) Set to a value indicating the positioning of the "positive_sign" for a nonnegative formatted monetary quantity using the "currency_symbol". See valid integer values. The keyword is specified, unless the "copy" keyword is used.	1 glibc-HEAD
- Position of negative sign (n_sign_posn) One or more integers separated by semicolons, set to a value indicating the positioning of the "negative_sign" for a negative formatted monetary quantity using the "currency_symbol". See valid integer values. The keyword is specified, unless the "copy" keyword is used.	1 glibc-HEAD
- Space separation between symbol and value (International) (int_p_sep_by_space) One or more integers separated by semicolons; set to 0 if no space separates the "int_curr_symbol" from the value for a nonnegative formatted monetary quantity, set to 1 if a space separates the symbol from the value, and set to 2 if a space separates the symbol and the sign string, if adjacent. If not specified, the value of "p_sep_by_space" is taken.	1 glibc-HEAD
- Space separation between symbol and value (neg, International) (int_n_sep_by_space) One or more integers separated by semicolons; set to 0 if no space separates the "int_curr_symbol" from the value for a negative formatted monetary quantity, set to 1 if a space separates the symbol from the value, and set to 2 if a space separates the symbol and the sign string, if adjacent. If not specified, the value of "n_sep_by_space" is taken.	1 glibc-HEAD

- Paper height (height) A4: height=297, width=210 Letter: height=279, width=216	279 glibc-HEAD
- Paper width (width) A4: height=297, width=210 Letter: height=279, width=216	216 glibc-HEAD

- Measure system (measurement) 1 for Metric system, 2 for US	2 glibc-HEAD

- Yes expression (yesexpr) The operand consists of an extended regular expression that describes the acceptable affirmative response to a question expecting an affirmative or negative response.	^[+1yY] glibc-HEAD	Example: `^[+1yY]`
- No expression (noexpr) The operand consists of an extended regular expression that describes the acceptable negative response to a question expecting an affirmative or negative response.	^[-0nN] glibc-HEAD	Example: `^[-0nN]`
- Yes string (yesstr) (LEGACY) The operand consists of a fixed string (not a regular expression) that can be used by an application for composition of a message that lists an acceptable affirmative response, such as in a prompt.	yes glibc-HEAD
- No string (nostr) (LEGACY) The operand consists of a fixed string that can be used by an application for composition of a message that lists an acceptable negative response.	no glibc-HEAD

The LC_NAME category defines formats to be used in addressing a person, e.g. in a postal address or in a letter.

- Name format (name_fmt) Define the appropriate representation of a person’s name and title. The operand consists of a string, and can contain any combination of characters and field descriptors. In addition, the string can contain field descriptors defined below. %f Family names. %F Family names in uppercase. %g First given name. %G First given initial. %l First given name with latin letters. In some cultures, eg on Taiwan it is customary to also have a first name written with Latin letters, although the rest of the name is written in another script. %o Other shorter name, eg. "Bill". %m Additional given names. %M Initials for additional given names. %p Profession. %s Salutation, such as "Doctor" %S Abbreviated salutation, such as "Mr." or "Dr." %d Salutation, using the FDCC-sets conventions, with 1 for the name_gen, 2 for name_mr, 3 for name_mrs, 4 for name_miss, 5 for name_ms. %t If the preceding field descriptor resulted in an empty string, then the empty string, else a . Each field descriptor may have an after the <%> to specify that the information is taken from a Romanized version string of the entity. An initial is any string, normally consisting of one letter and a punctuation mark; the Dutch "IJ" is an example of a two character initial.	%d%t%g%t%m%t%f glibc-HEAD	Example: `%p%t%g%m%t%f`
- Generic salutation (name_gen) The operand is a string defining a salutation valid for all persons.	-
- Salutation for miss (name_miss) The operand is a string defining a salutation valid for unmarried females.	Miss. glibc-HEAD	Example: `Miss.`
- Salutation for mister (name_mr) The operand is a string defining a salutation valid for males.	Mr. glibc-HEAD	Example: `Mr.`
- Salutation for mistress (name_mrs) The operand is a string defining a salutation valid for married females.	Mrs. glibc-HEAD	Example: `Mrs.`
- Salutation for women (name_ms) The operand is a string defining a salutation valid for all females.	Ms. glibc-HEAD	Example: `Ms.`

The LC_ADDRESS category defines formats to be used in specifying a location like a person’s home or office, for use in a postal address or in a letter, and other items related to geography, including natural language. All keywords are strings and may contain non- digits, and all keywords are optional.

- Postal format (postal_fmt) Define the appropriate representation of a postal address such as street and city. The proper formatting of a person’s name and title is done with the "name_fmt" keyword of the LC_NAME category. The operand consists of a string, and can contain any combination of characters and field descriptors. In addition, the string can contain field descriptors defined below. %n Person’s name, possibly constructed with LC_NAME. %a Care of person, or organization. %f Firm name. %d Department name. %b Building name. %s Street or block (eg. Japanese) name. %h House number or designation. %N Insert an <end-of-line> if the previous descriptor’s value was not an empty string; otherwise ignore. %t Insert a <space> if the previous descriptor’s value was not an empty string; otherwise ignore. %r Room number, door designation. %e Floor number. %C Country designation, from the keyword. %l Local township within town or city %z Zip number, postal code. %T Town, city. %S State, province, or prefecture. %c Country, as taken from data record. Each field descriptor may have an <R> after the <%> to specify that the information is taken from a Romanized version string of the entity. NOTE: There are a number of variations for specifying a location among the cultures. Some of the information, like the middle names, or even the family name, is not used in some cultures. The specification here should be regarded as a starting point for this problem.	%a%N%f%N%d%N%b%N%h %s %e %r%N%T, %S %z%N%c%N glibc-HEAD	Example: `%a%N%f%N%d%N%b%N%h %s %e %r%N%T, %S %z%N%c%N`
- Country name (country_name) The operand is a string with the name of the country in the language of the FDCC-set.	United States glibc-HEAD
- Country postal abbreviation (country_post) The operand is a string with the abbreviation of the country, used for postal addresses, for example by the CEPT-MAILCODE codes designating countries in Europe. Other abbreviation systems are also allowed, and there is no specific way to identify which abbreviation system is being used.	USA glibc-HEAD
- Two-letters country abbreviation (country_ab2) See glibc iso-3166.def	US glibc-HEAD
- Three-letters country abbreviation (country_ab3) See glibc iso-3166.def	USA glibc-HEAD
- Country number (country_num) See glibc iso-3166.def	840 glibc-HEAD
- Country abbreviation (country_car) The operand is a string with the abbreviation of the country, used for motor vehicles and traffic, according to the Genève convention 1949:68. See also http://en.wikipedia.org/wiki/List_of_international_license_plate_codes	USA glibc-HEAD
- Country ISBN (country_isbn) The operand is a string with the abbreviation of the country, used for book numbering (ISBN), according to ISO 2108	0 glibc-HEAD
- Language name (lang_name) The operand is a string with the name of the language in the language of the FDCC-set.	English glibc-HEAD
- Two-letter language abbreviation (lang_ab)	en glibc-HEAD	Example: `en`
- Three-letter abbreviation of language (lang_term) The operand is a string with the three-letter abbreviation of the language for terminology use, according to ISO 639-2.	eng glibc-HEAD
- Three-letter abbreviation of language (lib) (lang_lib) The operand is a string with the three-letter abbreviation of the language for library use, according to ISO 639-2. If not specified, the value of the "lang_ab3_term" keyword is taken.	eng glibc-HEAD

The LC_TELEPHONE category defines the interpretation of a number of field descriptors. For "tel_int_fmt" and "tel_dom_fmt", here are the field descriptors are also available:

%a: area code without nationwide prefix (prefix is often <0>).
%A: area code including nationwide prefix (prefix is often <0>).
%l: local number (within area code).
%e: extension (to local number)
%c: country code
%C: alternate carrier service code used for dialling abroad
%t: Insert a <space> if the previous descriptor’s value was not an empty string; otherwise ignore.

- International phone format (tel_int_fmt) Define the appropriate representation of a telephone number for international use. The operand consists of a string, and can contain any combination of characters and field descriptors. In addition, the string can contain field descriptors (see above). glibc only support "aAlc" descriptors.	+%c (%a) %l glibc-HEAD
- Domestic phone format (tel_dom_fmt) Define the appropriate representation of a telephone number for domestic use. The operand consists of a string, and can contain any combination of characters and field descriptors. In addition, the string can contain field descriptors (see above).	(%a) %l glibc-HEAD
- International selector (int_select) The operand is a string with the digits used to call international telephone numbers. See http://en.wikipedia.org/wiki/List_of_international_call_prefixes	11 glibc-HEAD
- International prefix (int_prefix) The operand is a string with the prefix used from other countries to call the area. See http://en.wikipedia.org/wiki/List_of_country_calling_codes	1 glibc-HEAD

Locale Helper

English - UNITED STATES OF AMERICA (US) (en_US)

General information (LC_IDENTIFICATION)

Characters (LC_CTYPE)

Collation (LC_COLLATE)

Dates (LC_TIME)

Numbers (LC_NUMERIC)

Currency (LC_MONETARY)

Paper format (LC_PAPER)

Measure units (LC_MEASUREMENT)

Yes/No forms (LC_MESSAGES)

Person addressing (LC_NAME)

Address formats (LC_ADDRESS)

Phone formats (LC_TELEPHONE)