search for: 6,2011

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2011 Sep 24
2
maptools::sunriset() daylight savings to stardard time change
Hello all, After beating my head against the wall for a few hours, I give up. I have two problems. 1. If I use seq() to generate a POSIXct series that crosses a daylight savings to stardard time change I get two values for the first day of change. The time change is Nov 6,2011. The value for Nov 7 turns into 23:00 on Nov 6, thus two values for Nov 6. (see below) So I put a time value (noon) into the sequence, that did give me a correct date sequence. 2. When using that modified date sequence in maptools::sunriset(), on day of change to stardard time the sunrise t...