Formatting Date Strings in R -

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i have 2 columns of differently formatted date strings need make same format,

the first in form:

vt_dev_date = "6/20/2016 7:45"

the second in form 

vt_other = "2016-06-14 20:21:29.0"

if them both in same form down minute great. have tried 

strptime(vt_dev_date,format = "%y-%m-%d %h:%m") strptime(vt_other,"%y-%m-%d %h:%m")

and second one, works , "2016-06-14 20:21:00 edt"

but first string, seems because month , hour not padded zeros, none of formating tricks work, becuase if try

test_string <- "06/20/2016 07:45" strptime(test_string,format = "%m/%d/%y %h:%m") [1] "2016-06-20 07:45:00 edt"

it works, dont think going through every row in column , padding each date great option. appreciated.

thanks,

josh

how using lubridate , follows :

library(lubridate)  x <- c("6/20/2016 7:45","2016-06-14 20:21:29.0")  > x [1] "6/20/2016 7:45"        "2016-06-14 20:21:29.0"  > parse_date_time(x, orders = c("mdy hm", "ymd hms")) [1] "2016-06-20 07:45:00 utc" "2016-06-14 20:21:29 utc" >

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