Can a society exist without a concept of time? If a society was forced

Can a society exist without a concept of time? If a society was forced

Can a society exist without a concept of time? If a society was forced underground, cut off from cycles like day and night, without any time-keeping technology, would one be invented at some point or would people simply dictate everything by the "now," eating when they are hungry and sleeping when they are sleepy etc.

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