A sign says, "No-Gas Closed For The Duration."

What does the sign mean?

Closed until there's a delivery of more gas.
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Thanks, F11.
You're welcome Emotion: smile
Or it can mean “closed for the duration of the holidays”, meaning it is shut over a holiday weekend.

Lil’ Ruby Rose
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Thanks, Lil’ Ruby Rose.

Good to know there's one more meaning.

In fact, the sign is icomplete grammatically.

for the duration ( of ....)