Day of week and time in one column


I am trying to create a date time column that combines aday of week and time for example "Monday 23:00" so that I can use a function to add transit hours (for example, 9 hours) and see what the arrival date and time would be "Tuesday 8:00".  I cannot figure out how to configure the first column... any suggestions??

I currently have a day of week column, start time column, and transit hours column. (See attached)



Image icon cutoff.png5.8 KB