Answer:
1) east longitude will be 6 am, Monday 25th
2) west longitude will be 6 am, Tuesday 26th
Step-by-step explanation:
Every 15° is equal to one hour
Greenwich is the zero in GMT.
For east, 180°/15 = 12 hours late
Therefore time will be 6 am December 25th.
For the west, time will be 6 am December 26th.