Nokia 3100 -- possible to track daytime minutes?

Hello,
I'm new to cell phones, and I'm wondering if there's some way to get a
running tally of my daytime minutes (I'm limited to 200 minutes per
month). My cell company doesn't provide running totals over the month,
but they told me that the phone has a function that tallies daytime
minutes -- I can't see such a feature with the 3100. Any suggestions?
is there a tiny piece of software that can be installed that performs
such a function?

thanks,
willem