Question: When we tell time and say it is 2 pm, we are doing modular (clock-face) arithmetic. When we say 2 pm, we really mean that

When we tell time and say it is 2 pm, we are doing modular (clock-face) arithmetic. When we say 2 pm, we really mean that it is 14 hours into the day. So we do 14 (mod 12) = 2.

What is 18(mod 12)?

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