nix/module/common/Locale.nix

{ const, ... }: {
	time.timeZone      = const.timeZone;
	i18n.defaultLocale = "en_US.UTF-8";

	# You can customize your Locale in detail like that.
	# i18n.extraLocaleSettings = {
	# 	LC_ADDRESS        = "ru_RU.UTF-8";
	# 	LC_IDENTIFICATION = "ru_RU.UTF-8";
	# 	LC_MEASUREMENT    = "ru_RU.UTF-8";
	# 	LC_MONETARY       = "ru_RU.UTF-8";
	# 	LC_NAME           = "ru_RU.UTF-8";
	# 	LC_NUMERIC        = "ru_RU.UTF-8";
	# 	LC_PAPER          = "ru_RU.UTF-8";
	# 	LC_TELEPHONE      = "ru_RU.UTF-8";
	# 	LC_TIME           = "ru_RU.UTF-8";
	# };
}