On the first day of each month (“Rosh Chodesh”), for example, we read Bamidbar / Numbers 28:1-15. Rosh Hodesh
The last reading of every biblical holiday Torah reading is a reading from Pinchas, as follows:
On Passover (1st day, and 2nd day in the diaspora), the Maftir is Bamidbar / Numbers 28:16-25. Passover Torah Reading – Parshah , while it is is Bamidbar/Numbers 28:19-25 for the remainder of the holiday. Shabbat, Chol Hamoed, Pesach Torah Reading – Parshah
Shavuot follows both in the Torah and in the calendar, with its Maftir being Numbers/Bamidbar 28:26-31. Shavuot Torah Reading – Parshah
Both days of Rosh Hashana have Numbers / Bamidbar 29:1-6 as the Maftir. Rosh Hashanah Torah Reading – Parshah.
On Yom Kippur, it is Numbers/Bamidbar 29:7-11. Yom Kippur Torah Reading – Parshah
The first day (s) of Sukkot, the Maftir is Numbers/Bamidbar 29:12-16 Sukkot Torah Reading – Parshah, while during the intermediate days of Sukkot, we read portions, day by day, of Bamidbar / Numbers 29:12–31 (describing the sacrifice that would have been brought on that day during Temple times), Sukkot Torah Readings – The Kosher Hub – Find the Best Kosher Foods Online.
For a complete list of Torah readings, go to Weekly Torah Portion—Parshah List – Parshah