Date set is not equal to date selected in datepicker

# Expected Behavior
When I'm manipulating the date of planting, it opens a datepicker. When I click on a date, this date will be set as date I planted the plant.

# Actual Behavior
Same as above, except the date I click on is not the date which is set.
The date set is the selected date -1

# Steps to Reproduce
Add plant manually, should be "1 day old". Then edit the plant and select a new date.