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      <base href="https://bugs.documentfoundation.org/">
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    <body><span class="vcard"><a class="email" href="mailto:btomi96@gmail.com" title="Tamas Bunth <btomi96@gmail.com>"> <span class="fn">Tamas Bunth</span></a>
</span> changed
          <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED WONTFIX - HSQLDB: Date will be changed when timezone of OS is changed"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=63566">bug 63566</a>
          <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEW
           </td>
           <td>RESOLVED
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Resolution</td>
           <td>---
           </td>
           <td>WONTFIX
           </td>
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            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED WONTFIX - HSQLDB: Date will be changed when timezone of OS is changed"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=63566#c17">Comment # 17</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED WONTFIX - HSQLDB: Date will be changed when timezone of OS is changed"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=63566">bug 63566</a>
              from <span class="vcard"><a class="email" href="mailto:btomi96@gmail.com" title="Tamas Bunth <btomi96@gmail.com>"> <span class="fn">Tamas Bunth</span></a>
</span></b>
        <pre>It is caused by the time zone handling of HSQLDB. Local time is taken, but the
"data" file stores it as UTC+0 (in form of elapsed milliseconds - for TIME,
DATE and TIMESTAMP columns).

See [1] or src/org/hsqldb/HsqlDateTime.java in HSQLDB source.

@Gerhard: you may consider using Firebird. It is less buggy than before. Also,
please report a (new) bug here in Bugzilla if you have further problems.

[1]
<a href="https://wastack.wordpress.com/2018/04/07/final-steps-of-libreoffice-database-migration/">https://wastack.wordpress.com/2018/04/07/final-steps-of-libreoffice-database-migration/</a></pre>
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