🔍 Key Concepts

• Daylight Saving Time (DST) vs Zone Time (ZD +4) and how to convert the given time to standard time for current tables • Using Tidal Current Tables: finding the reference station for Fourteen Foot Bank Light and applying subordinate station corrections (time and rate) • Relating the time of departure to the time of nearest high or low water or slack at the reference station, then adjusting for Fourteen Foot Bank

💭 Think About

• How do you convert 1515 DST (ZD +4) to the standard time used in the current tables for that area on 6 August 1983? Walk through the hour change carefully. • Once you know the correct standard time, where are you in the tidal cycle relative to the nearest slack water or maximum flood/ebb at the reference station? Are you before, near, or after max current? • After finding the reference station’s predicted current at that time, how do the subordinate station corrections for Fourteen Foot Bank change the time and rate of the current?

✅ Before You Answer

• Be sure you have converted DST to standard time correctly before entering the current tables. • Verify you are using the right reference station for Fourteen Foot Bank and applying the correct time difference and rate factor to get the subordinate station’s current. • Double-check whether the sign of the current (flood vs ebb) matches the stage of the tide at that exact adjusted time before choosing between the ebb options or slack.