Error with Time - "Origin" must be supplied

General
5

I´m trying to replicate your issue with dates stored as factors but I can´t, It just works as expected.

library(lubridate)
library(dplyr)

# Made up sample data
df <- data.frame(Time = c("06:20:00.0000000", "07:20:00.0000000", "08:20:00.0000000"))
class(df$Time)
#> [1] "factor"

df %>% 
    mutate(Hour = as.factor(hour(hms(Time))))
#>               Time Hour
#> 1 06:20:00.0000000    6
#> 2 07:20:00.0000000    7
#> 3 08:20:00.0000000    8

Could you ask this with a minimal REPRoducible EXample (reprex)? A reprex makes it much easier for others to understand your issue and figure out how to help.

If you've never heard of a reprex before, you might want to start by reading this FAQ: