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https://issues.apache.org/jira/browse/DERBY-7091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17232951#comment-17232951
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Larry Melvin Lemons edited comment on DERBY-7091 at 11/16/20, 5:49 PM:
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I added a simple program that demonstrates the behavior but the script above
should also work, although the last insert statement should be for 02:00
instead of 01:48 to show that the November change isn't odd.
Also, I have not tried the latest Derby version (10.15.2.0) yet. I ran into
problems updating it and getting it to work.
was (Author: llemons):
I added a simple program that demonstrates the behavior but the script above
should also work, although the last insert statement should be for 02:00
instead of 01:48 to show that the November change isn't odd.
> Times Inserted Incorrectly Around Daylight Savings Time Change in Spring
> ------------------------------------------------------------------------
>
> Key: DERBY-7091
> URL: https://issues.apache.org/jira/browse/DERBY-7091
> Project: Derby
> Issue Type: Bug
> Affects Versions: 10.14.2.0
> Environment: Java 14.0.1
> Reporter: Larry Melvin Lemons
> Priority: Critical
> Attachments: Test.java, Timezone_Data_Inconsistencies.odt
>
>
> When inserting date/times into the timestamp field around the daylight
> savings time change in the Spring, the times are inconsistent. I am in/use
> the New York EST/EDT timezone, but the data I am inserting is Standard time
> and not Daylight Savings Time
> All the times are correct up to 1:48AM, then when it inserts 2:00 AM the data
> in the database is 3:00AM. That could be alright if it kept switching the
> time to Daylight Savings Time, however going from inserting 2:48AM and
> getting 3:48AM in the database, when it inserts 3:00AM it shows 3:00AM in the
> database, not the expected 4:00AM. Then in the fall whatever is inserted in
> the database is what shows in the database around the daylight savings time
> switch to standard time. See the attached Open Document Text file for
> examples of what is actually inserted and what is showing in the database.
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