Publishing Date wrong after change to winter time

tymol · 11-07-2023, 01:32 PM

Hi guys, I have a problem with Calibre 6.28.1:
After the change to winter time, the publisch date of almost every book has been moved back by one day
I don't remember having such a problem before
any idea?
Thanks.

tymol · 11-07-2023, 01:46 PM

I always entered the date manually without the time and time zone

Cofiguration and Example:

gui_pubdate_display_format = 'dd.MM.yyyy'

Metadata book (metadata.opf):
<dc:date>2021-09-15T22:00:00+00:00</dc:date>

Metadata catalogue (metadata.opf) of this book:
2023-10-20 16:03:33.052034+00:002021-09-15 22:00:00+00:00

but 2021-09-16 was entered

kovidgoyal · 11-07-2023, 09:26 PM

https://bugs.launchpad.net/calibre/+bug/2042815

AstroCalibre · 11-10-2023, 05:18 PM

I also raised the problem a few days ago. At least I think it's the same problem.

https://www.mobileread.com/forums/sh...d.php?t=356932

AstroCalibre · 11-17-2023, 05:03 PM

I just installed the latest version of Calibre (7.0) and the problem is not resolved. I entered the publication date in a book (01 Jun 1973) but it appears 31 May 1973 (see the attached image).

AstroCalibre · 11-25-2023, 06:43 PM

With version 7.1 the problem has been resolved. Thanks, Kovid

adax · 11-08-2024, 04:31 PM

I am on windows 10, time zone is CET (UTC+01:00) and daylight saving is set to automatically.
Calibre release is 7.18, just updated to 7.21 with the same behaviour.

I created books during last year's daylight saving period (summer time) and the date fields were displayed as e.g. 2023-07-15 00:00:00.
If the daylight saving period was over (winter time) the display of dates changed to e.g. 2023-07-14 23:00:00.
Starting with this year's daylight saving period the display changed back to 2023-07-15 00:00:00.

But if an event (like publication of a book) took place on 2023-07-15 at 3 o'clock pm the date should - from my view - always be shown as 2024-07-15 15:00:00 regardless of any time zone or daylight saving settings.

Is there any way to keep the date display unchanged?

11-07-2023, 01:32 PM	#1
tymol Junior Member Posts: 2 Karma: 10 Join Date: Nov 2023 Device: Kindle	Publishing Date wrong after change to winter time Hi guys, I have a problem with Calibre 6.28.1: After the change to winter time, the publisch date of almost every book has been moved back by one day I don't remember having such a problem before any idea? Thanks.

11-17-2023, 05:03 PM	#5
AstroCalibre Enthusiast Posts: 27 Karma: 10 Join Date: Nov 2019 Device: Android smartphone	I just installed the latest version of Calibre (7.0) and the problem is not resolved. I entered the publication date in a book (01 Jun 1973) but it appears 31 May 1973 (see the attached image). Attached Thumbnails

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11-07-2023, 01:46 PM	#2
tymol Junior Member Posts: 2 Karma: 10 Join Date: Nov 2023 Device: Kindle	I always entered the date manually without the time and time zone Cofiguration and Example: gui_pubdate_display_format = 'dd.MM.yyyy' Metadata book (metadata.opf): <dc:date>2021-09-15T22:00:00+00:00</dc:date> Metadata catalogue (metadata.opf) of this book: 2023-10-20 16:03:33.052034+00:002021-09-15 22:00:00+00:00 but 2021-09-16 was entered

11-07-2023, 09:26 PM	#3
kovidgoyal creator of calibre Posts: 45,308 Karma: 27111242 Join Date: Oct 2006 Location: Mumbai, India Device: Various	https://bugs.launchpad.net/calibre/+bug/2042815

11-10-2023, 05:18 PM	#4
AstroCalibre Enthusiast Posts: 27 Karma: 10 Join Date: Nov 2019 Device: Android smartphone	I also raised the problem a few days ago. At least I think it's the same problem. https://www.mobileread.com/forums/sh...d.php?t=356932

11-25-2023, 06:43 PM	#6
AstroCalibre Enthusiast Posts: 27 Karma: 10 Join Date: Nov 2019 Device: Android smartphone	With version 7.1 the problem has been resolved. Thanks, Kovid

11-08-2024, 04:31 PM	#7
adax Junior Member Posts: 1 Karma: 10 Join Date: Nov 2024 Device: none	I am on windows 10, time zone is CET (UTC+01:00) and daylight saving is set to automatically. Calibre release is 7.18, just updated to 7.21 with the same behaviour. I created books during last year's daylight saving period (summer time) and the date fields were displayed as e.g. 2023-07-15 00:00:00. If the daylight saving period was over (winter time) the display of dates changed to e.g. 2023-07-14 23:00:00. Starting with this year's daylight saving period the display changed back to 2023-07-15 00:00:00. But if an event (like publication of a book) took place on 2023-07-15 at 3 o'clock pm the date should - from my view - always be shown as 2024-07-15 15:00:00 regardless of any time zone or daylight saving settings. Is there any way to keep the date display unchanged?

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