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13 hours 37 minutes


7:30 to 8:00 = 0:30
8:00 to 12:00 = 4:00
12:00 to 9:07 = 9:07
00:30 + 04:00 + 09:07 = 13:37 = 21:07 - 07:30

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7y ago

What else can I help you with?