The use case:
A user is presented a form with (for simplicity) two text fields: one for inputting minutes and one for inputting seconds. The user inputs 0 minutes and 100 seconds and clicks OK. Then they open the form again. What are the expected values in the fields supposing both options are valid:
- 0 minutes 100 seconds
- 1 minute 40 seconds
I personally tend to choose the option No.1 in order not to change the data the user have provided because the format may be intentional but I can't find a sufficiently solid basis for defending this point of view. Is there any UX guideline for this which I could refer to?