Hello,
It is pretty hard to help you without a proper reprex. See below a dummy example of doing what you need.
library(tidyr)
library(magrittr)
#>
#> Attaching package: 'magrittr'
#> The following object is masked from 'package:tidyr':
#>
#> extract
df <- data.frame(x = c("01/12/2010 08:26:00", "01/13/2010 08:26:00", "01/14/2010 08:26:00"))
df %>% tidyr::separate(x, sep = " ", c("A", "B"))
#> A B
#> 1 01/12/2010 08:26:00
#> 2 01/13/2010 08:26:00
#> 3 01/14/2010 08:26:00
Created on 2021-09-22 by the reprex package (v2.0.0)