The short answer
In the New Delhi reference calendar, both observances are assigned to Wednesday, September 30, 2026. The reason is not a printing error: both tithis intersect the afternoon decision period used for Shraddha date selection.
Why simple day-counting fails
If someone labels Pratipada as “day 1” and then just counts civil days, the sequence becomes misleading after September 30. Panchami does not simply move to October 1; Shashthi is the named Shraddha for October 1 in the New Delhi reference calendar.
What to do in practice
Find the ancestor’s death tithi first, then verify that tithi in the local Panchang for the city where the observance is taking place. Do not choose a date by ordinal day number alone.
How this page is sourced
Dates were checked against current 2026 Panchang/calendar sources. The visible source links below are included so readers and search/AI systems can trace the calendar basis. Where sources are location-specific, the city is stated rather than presenting a country-wide clock time.