Confused church bells on Pacific between Vanderbilt and Underhill

Could just be calling the faithful to midday services. Catholic churches have historically had an eighteen bell peal at 6 a.m., noon and 6 p.m. for The Angelus, but I would think that the random ding donging I heard at around 11.55 this morning was some newbie bell ringer who has no idea what s/he is doing. I was in the Stroud playground and couldn't quite tell which direction the bells were coming from. My husband thought they were coming from St Teresa's Church, but I couldn't see the bell moving in the tower (and I looked). St Teresa's has Mass at 11 a.m. and 12.30 p.m. on Sunday, so it could have been ringing for the end of Mass, although that is not a tradition I am familiar with.

I live on the block with Teresa's and have never heard their bells once, come to think of it.