subject:"\[R\] POSIXct issue"

Re: [R] POSIXct issue

2011-01-07 Thread Prof Brian Ripley

On Fri, 7 Jan 2011, Rustamali Manesiya wrote: Hello I have trouble getting my original datetime back see below. I hope I am missing something. Please help. The numeric form (which you should never use) has an origin at midnight in UTC, not EST. Note too that 'EST' is not very plausible for

[R] POSIXct issue

2011-01-07 Thread Rustamali Manesiya

Hello I have trouble getting my original datetime back see below. I hope I am missing something. Please help. > tt <- as.POSIXct("2011-01-07 07:49:13", tz="EST") > tt [1] "2011-01-07 07:49:13 EST" > ttn <- as.numeric(tt) > ttn [1] 1294404553 > tt <- as.POSIXct(ttn,origin='1970-01-01',tz="EST") >