2025-05-24 00:00:00 Based on the selected date, the application calculates the date on which 40 days, half a year and a year have passed since the death, i.e. the previous Saturday. If the calculated date ends in the so-called "forbidden days" for memorial services, the application offers the first preceding permitted day and the first preceding permitted Saturday. According to rule 169 of the Nomocanon, memorial services are not offered: