SQL Server query to convert my date column like `2015-08-24 12:05:19.000` into just date and minute values. 

For example `2015-08-24 12:05:19.000` should be converted into `2015-08-24 0.0833` which is (`5/60=0.083`) hours . ie `12.05` is 5 minutes past 12 o clock and `5/60` fraction of that hour.

Any suggestions or please help with query. Convert or any other normal date functions didn't help me. Please note this is single date column having date in rows. I don't want date difference between multiple columns.