Unix time to Date in R

sermomon

2023-01-03T06:27:24

I need to convert a vector of dates from Unix Time to Date format using R. For more context, this dates come from Sentinel-2 satellite imagery time series with one image every five days. The time series starts on 2020/01/01.

dates <- c(1577876409428, 1578308409796, 1578740409279, 1579172409017, 1579604408531)

I'm trying to convert to date using as follows:

library(lubridate)
new_date <- as.Date(as.POSIXct(dates, origin="1970-01-01"))

However, I get wrong results:

"51970-11-30" "51984-08-08" "51998-04-17" "52011-12-25" "52025-09-02"

Copyright License：
Author:「sermomon」,Reproduced under the CC 4.0 BY-SA copyright license with link to original source & disclaimer.
Link to：https://stackoverflow.com/questions/74987560/unix-time-to-date-in-r

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