When daylight savings time is kept, the times of tide and current calculations must be adjusted. One way of doing this is to __________.

Correct Answer: Option C — add one hour to the times listed for the reference stations

Per NOAA Tide Tables instructions, standard times listed in the tables are based on standard meridians. When local Daylight Savings Time is in effect, one hour must be added to the tabulated times for both reference and subordinate stations to convert standard time to local civil time.