Losing time offset from GMT:
> sTime = as.POSIXct(paste("2008-03-03","09:30:01"), origin="1970-01-01")
> sTime
[1] "2008-03-03 09:30:01 EST" <---- 9.31am EST
> sTime
[1] 1204554601
> t = as.numeric(sTime)
> as.POSIXct(t, origin="1970-01-01")
[1] "2008-03-03 14:30:01 EST" <----- no tz option and t is sTime + 5 hours
ahead (assume because I am in EST)
> as.numeric(as.POSIXct(t, origin="1970-01-01"))
[1] 1204572601 <----- value of t is sTime +5 hours
> as.POSIXct(t, origin="1970-01-01", tz="GMT")
[1] "2008-03-03 14:30:01 GMT" <--- time has not changed even though I used
tz=”GMT”
> as.numeric(as.POSIXct(t, origin="1970-01-01", tz="GMT"))
[1] 1204554601 <----- value is still sTime +5 hours though I am using GMT
I am in New York so am on EST time.
Missing the obvious...but what is it ?
Thanks,
Chris
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