Encoding Time Values I am using Python/Scikit to do data encoding before I go ahead and train my Neural Network. I have a few columns that look like this 

07:05:00
08:41:00
17:25:00
12:58:00
08:56:00
11:59:00
17:25:00
15:24:00


Any suggestions on how to encode this? Or is leaving it like this fine?
A common step in "feature engineering" is parsing these out into multiple values that might give you additional information during ML. For example:


Hour of the day
Minute of the hour
Hours after sunrise
Hours before sunset


If you also had day, that would open a lot more to detect seasonality like:


Month of the year
Month of the quarter
Day of the week
Holiday Y/N