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Unable to convert Epoch time to Date using R

I am trying to convert epoch time to date. I have a numeric array with epoch times.

I tried this - 

print(as.POSIXct(x), origin = "1970-01-01", tz = "CST6CDT"))

Where x represents the numeric array with epoch times

#Output:
" CDT" " CST" " CDT" " CDT" " CDT" " CST" " CDT" " CST"

I have tried these- 

print(as.POSIXct(1403878908842, origin = "1970-01-01", tz = "CST6CDT"))
print(as.POSIXct(1403878908842, origin = "1970-01-01", tz = ""))

But they all return timezones not the converted date.

Solution

  • Try this:

    as.POSIXct(1403878908842/1000, origin = "1970-01-01", tz = "")
## [1] "2014-06-27 10:21:48 EDT"

as.POSIXct(1403878908842/1000, origin = "1970-01-01", tz = "CST6CDT")
## [1] "2014-06-27 09:21:48 CDT"