Converting the factor data to POSIXct format

Question

The data is in factor format "2018-01-02T20:40:40.000Z" and I want it to be in POSIXct format "2018-01-02 20:40:40". How do I achieve this ?

Answer 1

Check ?strptime to know more about date-time formats

as.POSIXct(x, format = "%Y-%m-%dT%H:%M:%S")
#[1] "2018-01-02 20:40:40 GMT"

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With lubridate

library(lubridate)
ymd_hms(x)
#[1] "2018-01-02 20:40:40 UTC"

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Or with anytime

library(anytime)
anytime(x)
#[1] "2018-01-02 20:40:40 UTC"

data

x <- factor("2018-01-02T20:40:40.000Z")