Time

How much time has elapsed? What base does time work with? How is that different from what we are used to seeing? What problems do you think develop because of this? How much is 5 hours 23 minutes 17 seconds plus 20 hours 58 minutes 48 seconds? How much is 25 hours 23 minutes 17 seconds minus 20 hours 58 minutes 48 seconds? ................
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