St. Casimir Church at 10075 M-65 North, P.O. Box 217, Posen, MI 49776 US - Mass Times and Schedules
| Mass Schedule | |
| Sunday: | 9:00 AM |
| Monday: | NO MASS |
| Tuesday: | 8:30 AM |
| Wednesday: | 8:30 AM |
| Thursday: | NO MASS |
| Friday: | 8:30 AM |
| Saturday: | 4:00 PM |
| Sacrament of Reconciliation | |
| Saturday: | 3:30 PM |