"During the hours of darkness St Mary's looks really majestic in those floodlights, " added Mr White.

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During the hours of darkness the intelligent control system prevents dazzle from the headlights of other vehicles.

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If earlier the night had belonged to reprobates, now respectable people became accustomed to exploiting the hours of darkness.

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Bottom line: We require fresh oxygen and a couple of hours of darkness in which nobody speaks, our silent night.

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There wasn't a soul on the landscape in the hours of darkness.

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Scientists have to work through the night to collect biological samples during the brief hours of darkness when the phytoplankton is not photosynthesizing.

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But sometimes, instead of just moving sedately to a neighbouring bit of grazing when a patch was exhausted, they would make mad midnight dashes across an apparently suitable habitat, moving as far as 20km during the hours of darkness.

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Those animals' depressive symptoms, at least, went away once the hamsters returned to a schedule that included eight full hours of total darkness per day.

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And his biggest fear, he said, was the prospect of having to swim with all of his equipment for up to two hours at a time in darkness.

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Fully powered, the keyboard works for at least three months, even in total darkness (based on average use per day of eight hours).

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Obama landed in Afghanistan in the cover of darkness, and the signing ceremony occurred in the early morning hours.

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Just a few hours ago they took off to drop more than 1, 000 paratroopers under cover of darkness over northern Iraq to secure an airfield in the area controlled by the Kurds.

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Pakistan's government has ordered an inquiry into the cause of a nationwide power cut that plunged the country into darkness for a few hours.

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The best time of year to see them is during winter, when darkness in the upper latitudes stretches up to 24 hours.

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