Unix time to Human time in R -

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my dataset follows such structure: 

author, thread, created, converted

created in unix time, converted changed posixct format. have converted data subset using posixct` format:

data$converted <- as.posixct(data$created/1000, origin="1970-01-01")

however, returned output off. example, unix timestamp 1379017192658, r returns human time 9/13/13 5:49:52.

while time in online converted (and using formula in excel) returns different conversion of 9/12/13 8:19 pm

what missing here?


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