MirSuhail
As #Webnovel had already mentioned above that ,those are the books ,that will be ranked on Saturday and sunday .

    Ay! My head aching, I guess I'm just gonna drool over those ss that would be given out.

      When you google "The Navel of the Earth" on google images, you find this location image:
      You can see an hour on it: 13:28 and the day of the 3rd May 2013 is Saturday. So it should be on Saturday at 13:28.

      PS: I don't know why but I don't think I'm close to the right answer :p

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