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-   -   Daylight Saving Time (https://www.mersenneforum.org/showthread.php?t=9529)

S485122 2007-11-08 12:18

The poll is not really applicable in western Europe, Brussels for instance is situated 4° 26' 9 " East. With "winter" time (UTC -1) that would give sunrise at 6:42, sunset at 18:42. With "summer" time (UTC -2) that would give sunrise at 7:42, sunset at 19:42 almost double DST ! For Brest in western France the winter times would even be 07:18 / 19:88 and summer times 08:18 / 20:18. If you go to western spain in the Galicia province you can be at 9° 15' West, still using CET, DST sunrise 8:37, sunset 20:37...

Jacob

davieddy 2007-11-08 14:17

[quote=S485122;118039]The poll is not really applicable in western Europe, Brussels for instance is situated 4° 26' 9 " East. With "winter" time (UTC -1) that would give sunrise at 6:42, sunset at 18:42. With "summer" time (UTC -2) that would give sunrise at 7:42, sunset at 19:42 almost double DST ! For Brest in western France the winter times would even be 07:18 / 19:88 and summer times 08:18 / 20:18. If you go to western spain in the Galicia province you can be at 9° 15' West, still using CET, DST sunrise 8:37, sunset 20:37...

Jacob[/quote]
You are talking about the equinox. At our latitudes, the variable
length of the day lends more sense to changing the clocks than
in California say.
BTW if UTC were 6:00 and CET 7:00, why do you say CET=UTC-1 ?

David

PS As JS Bach would say: "Gottes Zeit ist die allerbestes Zeit" ;)

petrw1 2007-11-08 16:27

The Poll doesn't work very well for us in Canada either.

In Saskatchewan we are always on DST (our clocks never change ... great for IT people ... :w00t::w00t::w00t:) ... one of only a few places in all of North America.

However, to your poll:

By June 21 we get sun up before 5:00 AM and sunset close to 10:00 PM.
On a work day in the summer I can play a round of golf before work and another after work.
By December 21: Sun up about 9:00 AM; sunset about 5:00 PM.
We leave for work in the dark and come home in the dark

ewmayer 2007-11-08 16:37

[QUOTE=S485122;118039]The poll is not really applicable in western Europe[/QUOTE]

Sure it is - your examples are simply illustrative of the local geographical and where-am-I-with-respect-to-my-time-zone considerations one might use when deciding on one's answer to the poll. It's very simple: for places in the world which use a one-hour-separated binary summer/winter time scheme, which of the 2 schemes would the folks in the respective regions prefer, if they had to pick one and use it year-round? I don't see how that is unapplicable in Europe, Canada, Elbonia, etc.

davieddy 2008-04-04 09:00

[quote=axn1;117227]Why? It's just one more week. :whistle:[/quote]
And here it is:smile:
See "British Summer Time" thread.

Xyzzy 2015-02-26 18:45

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