I am trying to convert an entire column from a Dataframe from a string to date format. Does anyone have any recommendations on how to do this?

I've successfully been able to change one element of this using strptime, but not sure the best way to apply this to the entire column:

Sample of the raw Data:

```
2016/06/28 02:13:51

```

In: 

```
Var1 = Dataframename['columnname'][0]
temp = datetime.datetime.strptime(Var1, '%Y/%m/%d  %H:%M:%S')
temp

```

Out:

```
datetime.datetime(2016, 6, 28, 2, 13, 51)

```