Trying to set my tide watch to charlston sc. Harbor tide. I need to know Longitude? Lunitidal interval hour and min? Moon age? Example..26.4 Thank you so much if u can help me even the watch company hung up on me..lol
The lunitidal interval measures the time lag from the moon passing overhead, to the next high or low tide. From that link I gave you above, look at what time the moon is overhead and what time is the next high or low tide, then figure the hours and minutes between them