Convert UNIX time string to date in R

2020-02-20T22:16:44

I have the following UNIX time string:

"1575824800.169"

If you convert this time you will get: 12/08/2019 17:06 on an online unix converter.

However when trying to convert this in R using the following code:

as.POSIXct("1575824800.169", format='%d/%m/%Y %H:%M', origin = "1970-01-01")

I am returned with the value NA

i'm struggling to see why the above code does not work - i have looked into different answers on here, but have not found one where the unix time string has 3 digits after the period (dot) in the string. Maybe this is the problem?

Copyright License:
Author:「Beans On Toast」,Reproduced under the CC 4.0 BY-SA copyright license with link to original source & disclaimer.
Link to:https://stackoverflow.com/questions/60321982/convert-unix-time-string-to-date-in-r

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Copyright License:Reproduced under the CC 4.0 BY-SA copyright license with link to original source & disclaimer.