Can someone, please, explain the difference is results below (notice
the isdst value)
> unlist(as.POSIXlt('2005-7-1'))
sec min hour mday mon year wday yday isdst
0 0 0 1 6 105 5 181 1
> unlist(as.POSIXlt(as.Date('2005-7-1')))
sec min hour mday mon year wday yday isdst
0 0 0 1 6 105 5 181 0