The standard time meridian for zone description -12 is __________.
Official USCG Answer & Rule Citation
Correct Answer: Option D — 180.0°
Standard time zones are established every 15 degrees of longitude. Zone description -12 centers on the 180th meridian, which serves as the international boundary where zone time matches the Date Line criteria.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.