January • February • March • April • May • June • July • August • September • October • November • December
1st
- 2002: Episode 49 of Digimon Tamers airs in English for the first time.
- 2005: Digimon World 4 is released in North America for the Nintendo Gamecube.
- 2014: Episodes 25 and 26 of Digimon Fusion air in the United States of America for the first time.
2nd
- 2002: Episode 9 of Digimon Frontier airs in Japan for the first time.
- 2005: Digimon World 4 is released in North America for the PlayStation 2 and the Xbox.
3rd
- 2001: Episode 10 of Digimon Tamers airs in Japan for the first time.
4th
- 2000: Episode 10 of Digimon Adventure 02 airs in Japan for the first time.
- 2006: Episode 10 of Digimon Savers airs in Japan for the first time.
5th
- 2002: Digimon World 3 is released in North America for the PlayStation.
6th
- 1999: Episode 14 of Digimon Adventure airs in Japan for the first time.
7th
Nothing is currently known to have happened on this day.
8th
- 2002: Episodes 50 and 51 of Digimon Tamers air in English for the first time.
- 2014: Episodes 27 and 28 of Digimon Fusion air in the United States of America for the first time.
9th
- 2002: Episode 10 of Digimon Frontier airs in Japan for the first time.
10th
- 2001: Episode 11 of Digimon Tamers airs in Japan for the first time.
- 2016: DLC for Meicrackmon is released for Digimon World -next 0rder-.
11th
- 2000: Episode 11 of Digimon Adventure 02 airs in Japan for the first time.
12th
Nothing is currently known to have happened on this day.
13th
- 1999: Episode 15 of Digimon Adventure airs in Japan for the first time.
14th
Nothing is currently known to have happened on this day.
15th
- 2006: Digimon Story is released in Japan for the Nintendo DS.
- 2014: Episodes 29 and 30 of Digimon Fusion air in the United States of America for the first time.
16th
- 2002: Episode 11 of Digimon Frontier airs in Japan for the first time.
- 2008: Episode 32 of Digimon Data Squad airs in English for the first time.
17th
- 2001: Episode 12 of Digimon Tamers airs in Japan for the first time.
18th
- 2000: Episode 12 of Digimon Adventure 02 airs in Japan for the first time.
- 2006: Episode 11 of Digimon Savers airs in Japan for the first time.
19th
Nothing is currently known to have happened on this day.
20th
- 1999: Episode 16 of Digimon Adventure airs in Japan for the first time.
21st
- 2010: Chapter 1 of Digimon Xros Wars is published in Japan for the first time.
- 2011: Chapter 12 of Digimon Xros Wars is published in Japan for the first time.
- 2012: Chapter 1 of Digimon World Re:Digitize is published in Japan for the first time.
- 2013: Chapter 3 of Digimon World Re:Digitize: Encode is published in Japan for the first time.
22nd
Nothing is currently known to have happened on this day.
23rd
- 2002: Episode 12 of Digimon Frontier airs in Japan for the first time.
- 2008: Episode 33 of Digimon Data Squad airs in English for the first time.
24th
- 2000: Episodes 53 and 54 of Digimon Adventure air in English for the first time.
- 2001: Episode 13 of Digimon Tamers airs in Japan for the first time.
25th
- 2000: Episode 13 of Digimon Adventure 02 airs in Japan for the first time.
- 2006: Episode 12 of Digimon Savers airs in Japan for the first time.
26th
- 1997: The Digimon Virtual Pet is released by Bandai; the start of the Digimon franchise.
27th
- 1999: Episode 17 of Digimon Adventure airs in Japan for the first time.
- 2013: Digimon World Re:Digitize: Decode is released in Japan for the Nintendo 3DS.
28th
- 2001: Digimon Digital Card Battle is released in North America for the PlayStation.
29th
Nothing is currently known to have happened on this day.
30th
- 2002: Episode 13 of Digimon Frontier airs in Japan for the first time.
- 2008: Episode 34 of Digimon Data Squad airs in English for the first time.