Iuic Holy Days Calendar 2025. Service friday, april, 11, 2025 @ 7 pm. We will now provide you with the scriptural understanding on the 4 seasonal holy days we are to observe in addition to the 7 main feast days outlined in the scriptures.

In the catholic church, holy days of obligation are the days on which the faithful are obliged to participate in the mass. All observances except passover begin the prior.