Source

File: wp-includes/class-wp-recovery-mode.php

protected function get_link_ttl() {

		$rate_limit = $this->get_email_rate_limit();
		$valid_for  = $rate_limit;

		/**
		 * Filter the amount of time the recovery mode email link is valid for.
		 *
		 * The ttl must be at least as long as the email rate limit.
		 *
		 * @since 5.2.0
		 *
		 * @param int $valid_for The number of seconds the link is valid for.
		 */
		$valid_for = apply_filters( 'recovery_mode_email_link_ttl', $valid_for );

		return max( $valid_for, $rate_limit );
	}