Working with date-time format, cant handle POSIXct. (Error in as.POSIXlt.numeric(x) : 'origin' must be supplied)

[caglajf]

Hello,

I have a date-time column in my database in a format of "2017-01-02 8:27" as example. I want to add 10 minutes to this date-time version.

dat$EventTime=as.POSIXct(strptime( dat$EventTime, "%Y-%m-%d %H:%M"), tz = "", origin = '1970-01-01 00:00')

##date-time format becomes 2017-01-02 08:27:00 which is ok, however when I try to add 10 minutes

dat$EventTime[1]+minute(10)

I come across with this error

Error in as.POSIXlt.numeric(x) : 'origin' must be supplied

Could you please help me with that issue?

Thanks,