Get Ping on client side?

It seems useful to get the delay to server to simulate server movement on client side. I realize this could be implemented manually with server messages, but since the server is already pinging the client, I was wondering if its possible to get those messages instead?

I suppose the other option would just be to increment a state counter and track the delay on that state update?

There's a pingCount in Client, can be used as delay of a client.
If your pingInterval = 50ms & the client's pingCount = 1, you know the delay of the client is something >50ms & <100ms.