If we have no tide tables at hand, we can roughly calculate the time of high water for the day by adding forty-eight minutes for every day that has passed since the last full or new moon to the time at full and change given on the chart.
(we; have; no tide tables at hand) (we; can roughly calculate; the time of high water for the day) (every day; has passed; T:since the last full or new moon to the time at full and change) (change; given; L:on the chart)
we we every day change
have can roughly calculate has passed given
no tide tables at hand
the time of high water for the day
T:since the last full or new moon to the time at full and change
L:on the chart