Adding time to POSIXct object in R

Question

I would like to add 1 hour to a POSIXct object, but it does not support \'+\'.

This command:

as.POSIXct(\"2012/06/30\",\"GMT\") 
    + as.POSIXct(pas         


        

Answer 1

POSIXct objects are a measure of seconds from an origin, usually the UNIX epoch (1st Jan 1970). Just add the requisite number of seconds to the object:

x <- Sys.time()
x
[1] "2012-08-12 13:33:13 BST"
x + 3*60*60 # add 3 hours
[1] "2012-08-12 16:33:13 BST"