Irule for getting total response time, server response time and server connection time

Thanks!! It make sense what you said. So, I fixed the irule, putting "set connection_time 0" in the last part of the event HTTP_RESPONSE_RELEASE, so only when the SERVER_CONNECTED event happends, I calculate the connection_time, and that only happends once per connection, right?. This is the fixed irule:

when RULE_INIT  {
    set static::bigip [info hostname]
    set static::facility <191>
    set static::hsl_prefix "$static::facility|host=$static::bigip"
}

when CLIENT_ACCEPTED {
    set hsl [HSL::open -proto UDP -pool hsl_pool]
    set tcp_start_time [clock clicks -milliseconds]
}

when HTTP_REQUEST {
    set http_request_time [clock clicks -milliseconds]
}

when HTTP_REQUEST_SEND  {
    set http_request_send_time [clock clicks -milliseconds]
}

when LB_SELECTED  {
    set lb_selected_time [clock clicks -milliseconds]
        set hsl_prefix "${static::hsl_prefix}|upstream=[LB::server addr]"
}

when SERVER_CONNECTED  {
    set connection_time [expr {[clock clicks -milliseconds] - $lb_selected_time}]
}

when HTTP_RESPONSE  {
    set upstream_time [expr {[clock clicks -milliseconds] - $http_request_send_time}]
}

when HTTP_RESPONSE_RELEASE {
    HSL::send $hsl "$hsl_prefix|event=X_REQUEST|total_time [expr {[clock clicks -milliseconds] - $http_request_time}]|upstream_time $upstream_time|connection_time $connection_time|vserver_name [virtual name]\n"
    set connection_time 0
}

Thanks!