<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hi,<div><br></div><div>The rules for Finland say that summer time was in force in 1942 from Apr 3 to Oct 3:</div><div><div># Rule<span class="Apple-tab-span" style="white-space:pre"> </span>NAME<span class="Apple-tab-span" style="white-space:pre"> </span>FROM<span class="Apple-tab-span" style="white-space:pre"> </span>TO<span class="Apple-tab-span" style="white-space:pre"> </span>TYPE<span class="Apple-tab-span" style="white-space:pre"> </span>IN<span class="Apple-tab-span" style="white-space:pre"> </span>ON<span class="Apple-tab-span" style="white-space:pre"> </span>AT<span class="Apple-tab-span" style="white-space:pre"> </span>SAVE<span class="Apple-tab-span" style="white-space:pre"> </span>LETTER/S</div><div>Rule<span class="Apple-tab-span" style="white-space:pre"> </span>Finland<span class="Apple-tab-span" style="white-space:pre"> </span>1942<span class="Apple-tab-span" style="white-space:pre"> </span>only<span class="Apple-tab-span" style="white-space:pre"> </span>-<span class="Apple-tab-span" style="white-space:pre"> </span>Apr<span class="Apple-tab-span" style="white-space:pre"> </span>3<span class="Apple-tab-span" style="white-space:pre"> </span>0:00<span class="Apple-tab-span" style="white-space:pre"> </span>1:00<span class="Apple-tab-span" style="white-space:pre"> </span>S</div><div>Rule<span class="Apple-tab-span" style="white-space:pre"> </span>Finland<span class="Apple-tab-span" style="white-space:pre"> </span>1942<span class="Apple-tab-span" style="white-space:pre"> </span>only<span class="Apple-tab-span" style="white-space:pre"> </span>-<span class="Apple-tab-span" style="white-space:pre"> </span>Oct<span class="Apple-tab-span" style="white-space:pre"> </span>3<span class="Apple-tab-span" style="white-space:pre"> </span>0:00<span class="Apple-tab-span" style="white-space:pre"> </span>0<span class="Apple-tab-span" style="white-space:pre"> </span>-</div></div><div><br></div><div>However, </div><div><a href="http://almanakka.helsinki.fi/images/aikakirja/Aikakirja2013kokonaan.pdf">http://almanakka.helsinki.fi/images/aikakirja/Aikakirja2013kokonaan.pdf</a></div><div>pages 104-105, including a scan from a newspaper published on Apr 2 1942</div><div><br></div><div>say that it should be Oct 4, not Oct 3.</div><div><br></div><div>On Apr 2 1942, 24 o’clock (which means Apr 3 1942, 0:00 o’clock), clocks were moved one hour forward. The newspaper mentions “on the night from Thursday to Friday”. The tz entry is correct for the start of the daylight saving time.</div><div><br></div><div>On Oct 4 1942, clocks were moved at 1:00 one hour backwards. The tz entry should be corrected. Apparently not only the date, but also the time of day is wrong in the entry.</div><div><br></div><div>Hope this helps.</div><div><br></div><div>Konstantin Hyppönen</div></body></html>