Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Which time has a local/networked value of Local, ad frequency of every 20 minutes, and news frequency of n/a after 7PM news?

### Inputs:
table_name: table, columns: ['Time', 'Show Name', 'Local/Networked', 'Ad Freq', 'News Freq']

### Response:
SELECT Time FROM table WHERE Local/Networked = local AND Ad Freq = 20 minutes AND News Freq = n/a after 7pm news