I am coming back on this subject of time change in Turkey on 15 October 1978. TZ has Rule Turkey 1977 1978 - Apr Sun>=1 0:00 1:00 S Rule Turkey 1977 only - Oct 16 0:00 0 - Rule Turkey 1979 1980 - Apr Sun>=1 3:00 1:00 S Rule Turkey 1979 1982 - Oct Mon>=11 0:00 0 - AND Zone Europe/Istanbul 1:55:52 - LMT 1880 1:56:56 - IMT 1910 Oct # Istanbul Mean Time? 2:00 Turkey EE%sT 1978 Oct 15 3:00 Turkey +03/+04 1985 Apr 20 zdump -V -c 1977,1980 Europe/Istanbul Europe/Istanbul Sat Apr 2 21:59:59 1977 UT = Sat Apr 2 23:59:59 1977 EET isdst=0 gmtoff=7200 Europe/Istanbul Sat Apr 2 22:00:00 1977 UT = Sun Apr 3 01:00:00 1977 EEST isdst=1 gmtoff=10800 Europe/Istanbul Sat Oct 15 20:59:59 1977 UT = Sat Oct 15 23:59:59 1977 EEST isdst=1 gmtoff=10800 Europe/Istanbul Sat Oct 15 21:00:00 1977 UT = Sat Oct 15 23:00:00 1977 EET isdst=0 gmtoff=7200 Europe/Istanbul Sat Apr 1 21:59:59 1978 UT = Sat Apr 1 23:59:59 1978 EET isdst=0 gmtoff=7200 Europe/Istanbul Sat Apr 1 22:00:00 1978 UT = Sun Apr 2 01:00:00 1978 EEST isdst=1 gmtoff=10800 Europe/Istanbul Sat Oct 14 20:59:59 1978 UT = Sat Oct 14 23:59:59 1978 EEST isdst=1 gmtoff=10800 Europe/Istanbul Sat Oct 14 21:00:00 1978 UT = Sun Oct 15 01:00:00 1978 +04 isdst=1 gmtoff=14400 Europe/Istanbul Sun Oct 14 19:59:59 1979 UT = Sun Oct 14 23:59:59 1979 +04 isdst=1 gmtoff=14400 Europe/Istanbul Sun Oct 14 20:00:00 1979 UT = Sun Oct 14 23:00:00 1979 +03 isdst=0 gmtoff=10800 According to this, Turkey did not only not turn the hour back from +3h to +2h as otherwise in October at the end of DST, but in 1978 moved from +3h to +4h on 14 Oct 1978. It did move standard time forward AND did not end DST. Is there any source for this fact? The comment does not show any. Or is it a bug? Arthur Olson writes that the clocks were not back. But were they actually turned forward? On 21.10.10 16:35, Olson, Arthur David (NIH/NCI) [E] wrote:
The "europe" file rules represent Turkey changing time zones in 1978 by moving its clocks forward twice in the same year; Turkish clocks weren't turned back in 1978.
--ado
-----Original Message----- From: Zoidiasoft Tech [mailto:tech@astrology-x-files.com] Sent: Saturday, October 16, 2010 12:59 PM To: tz@lecserver.nci.nih.gov Subject: Turkey Rules late 70's
Rule Turkey 1977 1978 - Apr Sun>=1 0:00 1:00 S Rule Turkey 1977 only - Oct 16 0:00 0 - Rule Turkey 1979 1980 - Apr Sun>=1 3:00 1:00 S
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Did Turkey go off Summer Time in 1978?
C. Manwaring