I have a date and time value which I'm using POSIXct to store in a variable. and when I use as.Date the date is different - why ?
x<-as.POSIXct("2012-02-25 19:00:00")
as.Date(x)
[1] "2012-02-**26**"
Why is it incrementing day by 1?
By simply using x<-as.POSIXct("2012-02-25 19:00:00")
you will be setting the time zone, tz
, to your current systems time zone, EST.
However when you use as.Date
without declaring a time zone it will default to GMT. GMT is 5 hours ahead of EST so 25/02/2012 19:00 is 00:00 26/02/2012.
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