Tapping the NOW buttons give no feedback at all. Because the time is already prepopulated for both takeoff and departure, and it's always the current time, there's nothing that acknowledges the tap of either button.
A suggestion would be to have the time fields both blank until the NOW button is pressed, another would be to have the button change colors once tapped.
We're new to CF, but this is a constant gripe from the line pilots.
ALL users of CF will benefit from this enhancement.