If you can see a full moon at your position on Earth, the people on the exact opposite side of the world will also be seeing a full moon on the same day.

Here's why:

* Lunar phases are global: The phases of the moon are determined by the relative positions of the sun, Earth, and moon. These positions are the same for the entire Earth at any given time.

* Full moon means opposite sides: A full moon occurs when the Earth is positioned directly between the sun and the moon. This means that both sides of the Earth are facing the fully illuminated moon.

So, while the exact time of moonrise and moonset will be different due to time zones and location, the phase of the moon (full in this case) will be the same for everyone on Earth.