Yesterday your chronometer read 11h 59m 59s at 1200 GMT time tick. Today the chronometer reads 12h 00m 01s at the 1200 GMT tick. What is the chronometer rate?
Official USCG Answer & Rule Citation
Correct Answer: Option D — +2s
The chronometer rate is the daily change in error. Yesterday, the error was 1s fast (11h 59m 59s vs 12h 00m 00s). Today, the error is 1s slow (12h 00m 01s vs 12h 00m 00s). The change from +1s to -1s represents a total gain of +2s.
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