Right now, the algorithm is by default like this:
  1. 90 sec
  2. 30 min
  3. 12 h
  4. 2 days
  5. 2 weeks
  6. 2 months
It would be perfect if the user can modify the algorithm. For example I like it this way: 4 h - 12 h - 2 day - 1 week - 2 weeks - 2 months