WSJT Band hopping and gray time

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M6UCE
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Last seen: 11 months 16 hours ago
Joined: 2017/09/18 - 20:51
WSJT Band hopping and gray time

HI all

can anyone please explain what the "gray time" box on band hopping is please. Whats the effect of changing say from 120mins to 2 mins?