---
title: "St. Sylvester I: Feast Day December 31 · Bless"
url: https://blessbible.app/saints/st-sylvester-i/
description: "St. Sylvester I, Pope. Remembered on December 31, died c. 335. Read their life in Bless."
---

Pope · Remembered on December 31

# St. Sylvester I

St. Sylvester I is remembered on December 31 in Bless’s calendar of saints.

|  |  |
|---|---|
| Remembered on | [December 31](https://blessbible.app/saints/december/#31) |
| Title | Pope |
| Died | c. 335 |
| Next on Bless’s Today screen | [Thursday, December 31, 2026](https://blessbible.app/saints/st-sylvester-i/#calendar) |

## Life

Pope through the great turning: Constantine’s peace, the building of the first basilicas of St. Peter and the Lateran, and the Council of Nicaea, to which he sent his legates. Over his long, quiet pontificate the Church came out of the catacombs; the last day of the year bears his name across Europe.

## In the calendar

The upcoming dates, through December 31, 2028, when Bless’s Today screen shows St. Sylvester I. Where the US calendar keeps another celebration that day, it is named instead and no rank is given.

| Date | In the US calendar | Color | Mass readings (US) |
|---|---|---|---|
| [Thursday, December 31, 2026](https://blessbible.app/calendar/2026/12/31/) | The Seventh Day in the Octave of Christmas | White | 1 John 2:18-21 · Psalm 96:1-2, 11-12, 13 · John 1:14a, 12a · John 1:1-18 |
| [Friday, December 31, 2027](https://blessbible.app/calendar/2027/12/31/) | The Seventh Day in the Octave of Christmas | White | 1 John 2:18-21 · Psalm 96:1-2, 11-12, 13 · John 1:14a, 12a · John 1:1-18 |
| [Sunday, December 31, 2028](https://blessbible.app/calendar/2028/12/31/) | The Holy Family of Jesus, Mary and Joseph | White | Sirach 3:2-6, 12-14 · Psalm 128:1-2, 3, 4-5 · Colossians 3:12-21 or 3:12-17 · Colossians 3:15a, 16a · Matthew 2:13-15, 19-23 |

Readings

Reading citations through May 31, 2027 are as published in the USCCB liturgical calendar. Later citations were computed by Bless from the US Lectionary cycle — confirm with your parish.

[December 30 St. Egwin](https://blessbible.app/saints/st-egwin/) [January 1 St. Odilo of Cluny](https://blessbible.app/saints/st-odilo-of-cluny/)

[All the saints of December](https://blessbible.app/saints/december/) [Born on December 31?](https://blessbible.app/saints/birthday/#12-31) [A saint for every day](https://blessbible.app/saints/)

Spotted a mistake in a date, a patronage or a quotation? [Report an error](https://blessbible.app/support/#report) and we’ll fix it in the app and here.

St. Sylvester I

Remembered on December 31

On this page

1. [Life](https://blessbible.app/saints/st-sylvester-i/#life)
2. [In the calendar](https://blessbible.app/saints/st-sylvester-i/#calendar)

In the app

Bless shows a saint every day on its Today screen, with their life and their words. Free on iPhone.