What is the lunitidal interval for Durban?

Durban has a mixed semi-diurnal tide, meaning that there are two high tides and two low tides each day, with the heights of successive high and low tides varying. The lunitidal interval is the time between the moon passing overhead (transit) and the occurrence of high tide. For Durban, the lunitidal interval is approximately 2 hours and 20 minutes. This means that high tide occurs approximately 2 hours and 20 minutes after the moon passes overhead.