Thank you for your post, and I apologize for the late reply.
A calculation should not open a Time field. Perhaps you can tell me the script steps and/or calculation field being used to add the time.
Perhaps the user is using Insert calculated result to insert the current time into a time field? That would leave the cursor in the field and I'm guessing this might bring up the controls for editing the time when this is Filemaker Go.
If I'm right, modify your script to use set field instead of Insert. That way, you won't actually place the cursor in the field and these controls won't pop up.
Thanks phil, this was the case!
Thanks to TsGal as well