How can I change the time portion of a date time column to have 1 minute increments? When you create a coulmn by default it shows 5 minute increments, but I need to be able to use 1 minute increments. For example, I need to be able to pick 12:12, instead of 12:10 or 12:15.
It looks like you are out of luck at least with out of the box datetime field control. A little bit of reverse engineering revealed that they dropdown values are built into the control, not exposed.
You may have to write your own field control.