Comment Comment by mapcar Hi Hadley, yes for instance> as.chron("1970-01-01")+unclass(as.chron("2001-04-01")) [1] 04/01/01> as.POSIXct("1970-01-01","EST")+unclass(as.POSIXct("2014-06-01","EST")) [1] "2014-06-01 05:00:00 EST"If there is any conversion necessary it is difficult to get back the original intended time. parent mapcar 12 years ago
> as.chron("1970-01-01")+unclass(as.chron("2001-04-01")) [1] 04/01/01
> as.POSIXct("1970-01-01","EST")+unclass(as.POSIXct("2014-06-01","EST")) [1] "2014-06-01 05:00:00 EST"
If there is any conversion necessary it is difficult to get back the original intended time.