The following is an idea of how long a 5 minute job takes
1) Client conversation to get requirements - 10 minutes
2) PM document requirements for developer - 5 minutes
3) Developer - Create feature branch and do items - 10 minutes
4) Merge or give to Merge Master to get ready for Q/A 5 - minutes
5) Deploy - 5 minutes
6) Q/A tech reviewing work 10 - minutes
7) Deploy to Staging- 5 minutes
8) Hand off to client for UAT- 5 minutes
9) Deploy to Live - 5 Minutes
10) Final Q/A to confirm Live site hasn't crashed!- 5 Minutes
1 Hour and 10 minutes!!
This is just a representation of a 5 minute job. Of course things could take longer, but rarely do they take less time. Of course you can always just login to your live site and edit the code.