Which of the following is NOT contained in the locale setting of the operating system?

Currency symbol is an integral part of locale settings, as it dictates how monetary values are formatted and displayed according to regional conventions.

Language is a primary component of locale settings, influencing system messages, sorting order, and the character set used.

Locale settings (`LC_ALL`, `LANG`) control aspects such as language for messages, character encoding, numeric formatting (e.g., thousands separator, decimal point), and currency symbols, which are cultural conventions. However, the system's timezone is typically managed by separate configuration files and utilities, like `/etc/localtime` or `timedatectl`, and is not part of the standard locale categories.

Thousands separator, along with the decimal point and grouping of digits, is part of numeric formatting controlled by locale settings to match regional standards.