112. On 17 May your 0300 ZT DR position is LAT 27°21.0'N, LONG 146°14.0'E. You are on course 107°T at a speed of 18 knots. What will be the zone time of sunrise at your vessel?

Sunrise zone time is determined by adding approximately 15 minutes to the local mean time of sunrise, as found in the Nautical Almanac, accounting for the longitude difference and zone description.