The confusion is generally between tide and current. Lets take an example - say in fire island inlet, back by the bridge. Let's say the High Tide time is 2pm. This means the water will reach its highest level at 2 pm and will rise no higher. However, the water will continue to flow in (this is your current) for quite a while longer after 2pm. The period of time the water current continues to move in after the High Tide time varies from place to place. (In a minute I get to how to determine this time pecisely)At Fire Island inlet, for instance, the current may continue to move in for 2 hours after the High tide time. At Jones it may be 1hour. Back by the light it may be 2 hrs 15 minutes. The same is true for Low Tide. Outflowing water (current) may continue for quite some time after Low Tide, again depending on the location. What you want to know, especially if you are fishing the inlets, is when is High Water Slack and Low Water Slack. High Water Slack is the time (and it is precise) the the inflowing water (current) stops briefly before slowly reversing direction and starts to flow out. This is sometime referred to as the change of tide - a misnomer since it is really a change in current direction. Remember, this is not the same time as High or Low tide (except on the Ocean Beaches)The longer the time after high water slack, the faster the current will move (up to half way throug its cycle). This is when you start seeing your rips. The current will continue to increase in speed for half its period, then start to gradually slow as it approaches Low Water slack, where again it stops moving completelyfor a very brief time before reversing direction and the cycle starts over. To determine the time of High and Low Water Slack - the Nor'east magazine use to publish the time each week for all the inlets and bays,( this was the best and easiest way, but i don't think they do it any longer. Don't know why.) The Long Island Fisherman has a table that helps you calculate the times for certain general areas. Other than that, I don't know where you can find the exact times. Anyone out know??