(WIP DONT MERGE) NLP fix #3

[kengz]

using this PR to do CI checks as I push to my fork, make work visible, etc. To complete the NLP fix started in #74 , pick up from the last fix #78 :

• [ ] activate full CFG
• [ ] update the tests and it's ok use new default times if it's reasonable (e.g. 7pm for evening)
• [ ] the issues stated in History.md
• [ ] attach doc and description for algo so people can understand it