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Old 12-28-2018, 06:00 PM   #1
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Kindle timezone
Hi, anyone knowns how to set timezone in kindle paperwhite (not jailbroken)

This is my problem:

I set time on kindle to 23:51

in javascript/browser i call Date.now() and i get 1546037486922

This is in GMT: Friday, December 28, 2018 22:51:26.922

So my kindle is somewhat in +1 timezone, from where this settings come from?

When i set time on kindle to 22:57 (one hour less)

Date.now() is 1546037913339

This is GMT: Friday, December 28, 2018 22:58:33.339

This give me +0 timezone


It seems kindle is running in GMT and set the timezone from diff time you set and GMT time.

This is very strange behaviour. Anybody have a explanation?
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Old 12-28-2018, 08:06 PM   #2
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Which model Paperwhite?
Which version of the firmware?
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Old 12-29-2018, 09:01 AM   #3
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PW3, actual firmware
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Old 12-29-2018, 09:52 AM   #4
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Quote:
Originally Posted by matopeto View Post
PW3, actual firmware
Go to the "Device Info" panel in the "Settings" section, copy the version number to your post.
(I can't give you a more exact set of directions without knowing the firmware version - which is what you are looking up. )
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Old 12-29-2018, 09:54 AM   #5
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it is 5.9.7
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Old 12-29-2018, 09:57 AM   #6
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OK, have you tried setting the date/time/timezone from the search bar command?
(same command sets all three at the same time)
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Old 12-29-2018, 10:01 AM   #7
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Thanks for reply, What do you mean exaktly by set time from searchbar?
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Old 12-29-2018, 10:02 AM   #8
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If i set time with ;setTime command, behaviour is the same.
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Old 12-29-2018, 10:10 AM   #9
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It seems to be as i write. Confirmed by ;411 command.

If i set my local time (offset +1 from GMT) kindle is running in +1 GMT
If i set my local time to GMT it is running in GMT
and so on

So kindle knowns actual time and settings local time change the timezone
Last edited by matopeto; 12-29-2018 at 10:16 AM.
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Old 12-29-2018, 10:22 AM   #10
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Quote:
Originally Posted by knc1 View Post
OK, have you tried setting the date/time/timezone from the search bar command?
(same command sets all three at the same time)

But i dont find documentation with date/time/timezone commands, only ;setTime and ;st wit format without timezone yyyy-mm-dd HH:MM
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Old 12-29-2018, 11:35 AM   #11
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Quote:
Originally Posted by matopeto View Post
But i dont find documentation with date/time/timezone commands, only ;setTime and ;st wit format without timezone yyyy-mm-dd HH:MM
5.9 is new enough that it should accept the time zone field.


The search bar command simply makes a single call to the *nix date function without reformatting of input.
Ref:
http://man7.org/linux/man-pages/man1/date.1.html
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Old 12-29-2018, 02:05 PM   #12
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Thank you. It seems it is somewhat working I was able to set difrent time and GMT timezone.
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Old 12-29-2018, 05:10 PM   #13
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Quote:
Originally Posted by matopeto View Post
Thank you. It seems it is somewhat working I was able to set difrent time and GMT timezone.
Well, that is good news, Lab126 has had those controls "broke" for years.


There is a utility posted that will also correct the hardware clock (which "date" does not).
But that requires a jail break to run it.


The "somewhat working" you are seeing may just be the effect of not correcting the hardware clock.
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Old 12-29-2018, 05:59 PM   #14
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"somewhat working" i mean, that set diferent GMT time is workaroud to my problem.

Because kindle webbrowser doesn't report local timezone to javascript (that is correct according to ;411 command) and always report getTimezoneOffset() as zero. So if i need to show correct local time i need to set GMT to local time (in my case +1) (without using 3rd library and set the timezone by hand in javascript)
Last edited by matopeto; 12-29-2018 at 06:07 PM.
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Old 12-29-2018, 06:35 PM   #15
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If your computer is running ntpd and you have usb networking, you can ssh to your kindle and get the time from your computer.
Code:
ssh root@192.168.15.244
#################################################
#  N O T I C E  *  N O T I C E  *  N O T I C E  # 
#################################################
Rootfs is mounted read-only. Invoke mntroot rw to
switch back to a writable rootfs.
#################################################
[root@kindle root]# ntpdate 192.168.15.201
29 Dec 15:24:41 ntpdate[16285]: step time server 192.168.15.201 offset 16.067199 sec
(Use different IP addresses if you changed defaults)
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