I'm afraid threres no single answer to that mate. Different marks fish better at different states of the tide and in different conditions. That's why local knowledge is so important and valuable to us anglers.
Sometimes it will depend on which species you are after as well, rays and conger for example are generally fished for at night. Some fish in some areas will move in with the tide when it's flooding and then move out on the ebb, some places fish better after a storm and with a decent surf, others fish better when it's calm and so on.
Generally, if I was going to a new mark and had no knowledge of how it fished I'd try to fish 3up 3down, that's 3 hours of the flooding tide till high water then 3 hours of the ebb. Then next time you fish choose a different state of the tide and build up knowledge that way, by trial and error untill you find what's best