Calculate Timecode in Filemaker Pro 12

Hi all

I have a FMP PRO 12 database whit various Timecode fields in the same record

Is there a way to calculate the duration between the OUT timecode and the IN time code?

The record will look like this

TimeCodeIN 00:00:25:12

TimeCodeOUT 00:00:29:14

The result should be

Duration: 00:00:04:02

My timecode base is in pal therefore the frame numbers are always 25

Thanks