Officials said the miners were clearing about eight tons of rock every 12 hours to keep the mine shaft clear.

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Dairy cows produce milk for 10 months after they give birth to their calves, and they must be milked every 12 hours.

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The intended patient, Woody, another of her six rescued Bassets, was supposed to take half of a chewable, flavored tablet every 12 hours.

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Arts workers like performers and technicians would also have to work for 507 hours over 10-and-a-half months to qualify, rather then the same amount of hours every 12 months.

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While the community - which observes a strict rule of silence for 12 hours every night - does not need huge profit, extensive repairs to the monastery has recently put additional strain on the purse strings.

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This is the equivalent of 12 commercial trucks full every 24 hours.

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The average user on Facebook spends about six hours every month on Facebook's desktop site, while mobile users spend nearly 12 hours on the application, according to recent data from researcher comScore Inc.

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