Thirteen minutes off

 We noticed out bedroom clock was 13 minutes fast. It has all sorts of buttons we've never used in its 20 years (although actually we don't know how old it is) like snooze and alarm.  We've never set the alarm.  However, we suspect the problem.  The cleaning ladies were here on Friday morning. and as they go through the house something is usually reset or unplugged or put back where we can't find it.  They also make little folded designs in the Kleenex and toilet paper.  I've tried resetting the clock and Bob did too to no avail.  I'll have to work on it after church, but for now it's 13 minutes fast and the minute button refuses to move. I still haven't found a clock to replace my office clock that died some months ago.