|
1 | | -# @(#)europe8.18 |
| 1 | +# @(#)europe8.20 |
2 | 2 | # <pre> |
3 | 3 |
|
4 | 4 | # This data is by no means authoritative; if you think you know better, |
@@ -2313,11 +2313,64 @@ Zone Europe/Stockholm1:12:12 -LMT1879 Jan 1 |
2313 | 2313 | # mean time in preference to apparent time -- Geneva from 1780 .... |
2314 | 2314 | # RuleNAMEFROMTOTYPEINONATSAVELETTER/S |
2315 | 2315 | # From Whitman (who writes ``Midnight?''): |
2316 | | -RuleSwiss1940only-Nov 20:001:00S |
2317 | | -RuleSwiss1940only-Dec310:000- |
| 2316 | +#RuleSwiss1940only-Nov 20:001:00S |
| 2317 | +#RuleSwiss1940only-Dec310:000- |
2318 | 2318 | # From Shanks & Pottenger: |
2319 | | -RuleSwiss19411942-MaySun>=12:001:00S |
2320 | | -RuleSwiss19411942-OctSun>=10:000- |
| 2319 | +# RuleSwiss19411942-MaySun>=12:001:00S |
| 2320 | +# RuleSwiss19411942-OctSun>=10:000- |
| 2321 | + |
| 2322 | +# From Alois Treindl (2008-12-17): |
| 2323 | +# I have researched the DST usage in Switzerland during the 1940ies. |
| 2324 | +# |
| 2325 | +# As I wrote in an earlier message, I suspected the current tzdata values |
| 2326 | +# to be wrong. This is now verified. |
| 2327 | +# |
| 2328 | +# I have found copies of the original ruling by the Swiss Federal |
| 2329 | +# government, in 'Eidgen[o]ssische Gesetzessammlung 1941 and 1942' (Swiss |
| 2330 | +# federal law collection)... |
| 2331 | +# |
| 2332 | +# DST began on Monday 5 May 1941, 1:00 am by shifting the clocks to 2:00 am |
| 2333 | +# DST ended on Monday 6 Oct 1941, 2:00 am by shifting the clocks to 1:00 am. |
| 2334 | +# |
| 2335 | +# DST began on Monday, 4 May 1942 at 01:00 am |
| 2336 | +# DST ended on Monday, 5 Oct 1942 at 02:00 am |
| 2337 | +# |
| 2338 | +# There was no DST in 1940, I have checked the law collection carefully. |
| 2339 | +# It is also indicated by the fact that the 1942 entry in the law |
| 2340 | +# collection points back to 1941 as a reference, but no reference to any |
| 2341 | +# other years are made. |
| 2342 | +# |
| 2343 | +# Newspaper articles I have read in the archives on 6 May 1941 reported |
| 2344 | +# about the introduction of DST (Sommerzeit in German) during the previous |
| 2345 | +# night as an absolute novelty, because this was the first time that such |
| 2346 | +# a thing had happened in Switzerland. |
| 2347 | +# |
| 2348 | +# I have also checked 1916, because one book source (Gabriel, Traite de |
| 2349 | +# l'heure dans le monde) claims that Switzerland had DST in 1916. This is |
| 2350 | +# false, no official document could be found. Probably Gabriel got misled |
| 2351 | +# by references to Germany, which introduced DST in 1916 for the first time. |
| 2352 | +# |
| 2353 | +# The tzdata rules for Switzerland must be changed to: |
| 2354 | +# Rule Swiss 1941 1942 - May Mon>=1 1:00 1:00 S |
| 2355 | +# Rule Swiss 1941 1942 - Oct Mon>=1 2:00 0 - |
| 2356 | +# |
| 2357 | +# The 1940 rules must be deleted. |
| 2358 | +# |
| 2359 | +# One further detail for Switzerland, which is probably out of scope for |
| 2360 | +# most users of tzdata: |
| 2361 | +# The zone file |
| 2362 | +# Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12 |
| 2363 | +# 0:29:44 - BMT 1894 Jun #Bern Mean Time |
| 2364 | +# 1:00 Swiss CE%sT 1981 |
| 2365 | +# 1:00 EU CE%sT |
| 2366 | +# describes all of Switzerland correctly, with the exception of |
| 2367 | +# the Cantone Geneve (Geneva, Genf). Between 1848 and 1894 Geneve did not |
| 2368 | +# follow Bern Mean Time but kept its own local mean time. |
| 2369 | +# To represent this, an extra zone would be needed. |
| 2370 | + |
| 2371 | +# RuleNAMEFROMTOTYPEINONATSAVELETTER/S |
| 2372 | +RuleSwiss19411942-MayMon>=11:001:00S |
| 2373 | +RuleSwiss19411942-OctMon>=12:000- |
2321 | 2374 | # ZoneNAMEGMTOFFRULESFORMAT[UNTIL] |
2322 | 2375 | ZoneEurope/Zurich0:34:08 -LMT1848 Sep 12 |
2323 | 2376 | 0:29:44-BMT1894 Jun # Bern Mean Time |
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