620 PM -- 40 minutes
620 AM -- 12 hours, 40 minutes
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1/2 hour less than 12 hours 11:30 = 19:00 - 07:30
10 hours 20 minutes 620 - 20 = 600 = 60 x 10
620 cm = 20.341 feet (rounded)
Answer: 620 m² = 6,673.624 ft²
There are 10 minutes and 20 seconds in 620 seconds