I'm trying to make a timesheet with a time in and a time out. I have 2 date/time fields, one that collects the time when a form is started, and the other collects the time when the form is submitted.

I want the minutes value for both fields to be limited to a multiple of 15. (EX. it will always be 8:00, 8:15, 8:30, 8:45, or 9:00)

• I'm encountering a problem where the date/time that's collected isn't a multiple of 15, but it still increments by 15. (EX. It will start on 16 then it will increment up to 31)

• I also have a text field to calculates the difference between those times using a method learned here which I'm trying not to break: include hours and minutes when calculating difference b... (teamforms.app)

Calculate the difference between two date/time fields | Team Forms Docs

I'm using this method with date input disabled but the value doesn't show the minutes, only the hours

I sent a message to support and got this response:

"To achieve this you will need to use JavaScript which can get a little complex. Unfortunately, we are unable to provide assistance with writing your JavaScript expressions in this chat, however we have recently launched our community forum where you may be able to post your question."

Unfortunately I don't know JavaScript, so I'm looking for either of two things. 1, a reliable source of JavaScript syntax or 2, help.