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Old 02-08-2013, 04:59 PM   #1
Katsunami
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Kindle PW Time to Read discrepancy

This is quite strange. I've measured "Time to read" a few times, and it is spot on most of the time, being off by less than 2 minutes when measuring chapters.

Now I've spotted some strange stuff. I've put three new books onto the Kindle. Page numbers are determined by the device, I assume.

Book 1: 1375 pages, Time to read: 41 hours, 25 minutes
Book 2: 1395 pages, Time to read: 27 hours, 10 minutes
Book 3: 1681 pages, Time to read: 15 hours, 18 minutes.

I have all three books as hardbacks as well and their page counts are 929 pages, 979 pages, and 1121 pages, by the way, so it is indeed the case that the first two are similar, and the third is much longer. (They have similar print with regard to size and spacing.)

Whaddayknow. The longer the books become, the less time it costs to read them. How can there be a 14 hours difference between two books of equal length? Of course there can be, if one is more difficult than the other, but the Kindle will not be able to determine this.

Last edited by Katsunami; 02-08-2013 at 05:25 PM.
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Old 02-08-2013, 05:09 PM   #2
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Perhaps check locations vs. pages. They might be more accurate in terms of "time to read."
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Old 02-08-2013, 05:18 PM   #3
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Any maps in either of the books?
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Old 02-08-2013, 05:22 PM   #4
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Quote:
Originally Posted by pidgeon92 View Post
Perhaps check locations vs. pages. They might be more accurate in terms of "time to read."
Book 1 Locations: 18.444
Book 2 Locations: 23.257
Book 3 Locations: 22.125

Another strange result. How can book 3 have less locations when it has 300 more pages? Also, the difference in number of locations is not that big. Book 2 is only 5% longer than Book 3, but costs nearly twice as much time according to Time To Read.

Heck, I think I'll reset the function using ";ReadingTimeReset". (Why did I need to find that on the internet? It seems to not be documented anywhere FAIK.)

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Any maps in either of the books?
Nope, not in this one, but there was a map in the previous one. What difference would that make?
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Old 02-08-2013, 05:30 PM   #5
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Kindle page numbers are related to a specific print edition of a book, that why not all books have page numbers. A hard cover or trade paperback will often have a much different page count than a mass market paperback of the same book, not to mention some books have larger fonts than others or different margins. Lots of things can come into play when talking about a page in print, which will then reflect in the Kindle edition as well due to how page numbers are setup on Kindle.
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Old 02-08-2013, 06:06 PM   #6
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I understand, but there are two things at play here:

1. I don't know where the Kindle gets the page numbers for non-Amazon books. These are converted EPUBs. If I remember correctly, Calibre has an estimation function for pages; so maybe Calibre puts them in.

2. I have read all three books as hardbacks. There is NO way I would need almost 40 hours for the first (much less), and NO way I needed only 15 hours for the third. These books are all in the same ballpark with regard to reading time. I know from experience.
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Old 02-08-2013, 06:52 PM   #7
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Weird.

Maybe you can use those numbers in a "study" that shows using ereaders makes you a faster reader.
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Old 02-08-2013, 09:41 PM   #8
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If the chapter navigation isn't made correctly on the book the Time to Read will be off. It's the same navigation used to jump chapters on the K3, K4 and KT.
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Old 02-09-2013, 05:46 AM   #9
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Chapters seem to be correct. Checked it with Sigil.

I've reset the Time To Read. It quickly stabilized, indicating a speed of around 37 paged per hour. The measured time was accurate. After checking the three books above again, times were all over the place; it now indicated 4h for the first book, and around 40 and 13 for the second and third.

Maybe the kindle needs some time to stabilize with each book.
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Old 02-09-2013, 07:13 AM   #10
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Maybe the kindle needs some time to stabilize with each book.
Yes, it does. Reading time won't mean anything until you actually start reading the book.
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Old 02-09-2013, 07:26 AM   #11
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Oh, OK. So it's not the case that the Kindle just determines the speed you read at and then carries it over from book to book, only slightly adjusting. It starts (partially?) over with each new book, apparantly.
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