January 31
| [[{{#ifeq:31|1|{{#switch:{{#ifeq:1|1|12|{{#expr:1-1}}}} | 1=January | 2=February | 3=March | 4=April | 5=May | 6=June | 7=July | 8=August | 9=September | 10=October | 11=November | 12=December | 1|12|{{#expr:1-1}}}}
}} {{#switch:{{#ifeq:1|1|12|{{#expr:1-1}}}} |
1=31 | 2=29 | 3=31 | 4=30 | 5=31 | 6=30 | 7=31 | 8=31 | 9=30 | 10=31 | 11=30 | 12=31 | 1|12|{{#expr:1-1}}}}
}} |
{{#switch:1 | 1=January | 2=February | 3=March | 4=April | 5=May | 6=June | 7=July | 8=August | 9=September | 10=October | 11=November | 12=December | 1
}} {{#expr:31-1}}}}|yesterday]] |
[[{{#ifeq:31|{{#switch:1 | 1=31 | 2=29 | 3=31 | 4=30 | 5=31 | 6=30 | 7=31 | 8=31 | 9=30 | 10=31 | 11=30 | 12=31 | 1
}} |
12|1|{{#expr:1+1}}}} | 1=January | 2=February | 3=March | 4=April | 5=May | 6=June | 7=July | 8=August | 9=September | 10=October | 11=November | 12=December | 12|1|{{#expr:1+1}}}}
}} 1|{{#switch:1 |
1=January | 2=February | 3=March | 4=April | 5=May | 6=June | 7=July | 8=August | 9=September | 10=October | 11=November | 12=December | 1
}} {{#expr:31+1}}}}|tomorrow]] | |||||
}
|- |[[{{#switch:{{#if:1| {{#switch:{{#expr: 1 + -1}} |0=12 |13=1 |{{#expr: 1 + -1}} }} |}}{{#if:| {{#switch:{{{daysinmonth}}} |1=31 |2=29 |3=31 |4=30 |5=31 |6=30 |7=31 |8=31 |9=30 |10=31 |11=30 |12=31 | }}|}}{{#if:|{{#ifeq:{{#expr: ({{{isnextmonth}}} + -1) > Template:Cal-date/offset2 }}|1|1|}}|}}{{#if:|{{#ifeq:{{#expr: ({{{isprevmonth}}} + -1) < 1}}|1|1|}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|Template:Cal-date/offset2|{{{getoffsetmonth}}}}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|{{#if:Template:Cal-date/offset2|Template:Cal-date/offset2|1}}|pew{{#expr: {{{getoffsetday}}} + -1}}}}|}} |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |{{#if:1| {{#switch:{{#expr: 1 + -1}} |0=12 |13=1 |{{#expr: 1 + -1}} }} |}}{{#if:| {{#switch:{{{daysinmonth}}} |1=31 |2=29 |3=31 |4=30 |5=31 |6=30 |7=31 |8=31 |9=30 |10=31 |11=30 |12=31 | }}|}}{{#if:|{{#ifeq:{{#expr: ({{{isnextmonth}}} + -1) > Template:Cal-date/offset2 }}|1|1|}}|}}{{#if:|{{#ifeq:{{#expr: ({{{isprevmonth}}} + -1) < 1}}|1|1|}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|Template:Cal-date/offset2|{{{getoffsetmonth}}}}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|{{#if:Template:Cal-date/offset2|Template:Cal-date/offset2|1}}|pew{{#expr: {{{getoffsetday}}} + -1}}}}|}} }}|«]] | colspan="5" align="center"| [[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }}]] |[[{{#switch:{{#if:1| {{#switch:{{#expr: 1 + 1}} |0=12 |13=1 |{{#expr: 1 + 1}} }} |}}{{#if:| {{#switch:{{{daysinmonth}}} |1=31 |2=29 |3=31 |4=30 |5=31 |6=30 |7=31 |8=31 |9=30 |10=31 |11=30 |12=31 | }}|}}{{#if:|{{#ifeq:{{#expr: ({{{isnextmonth}}} + 1) > Template:Cal-date/offset2 }}|1|1|}}|}}{{#if:|{{#ifeq:{{#expr: ({{{isprevmonth}}} + 1) < 1}}|1|1|}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|Template:Cal-date/offset2|{{{getoffsetmonth}}}}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|{{#if:Template:Cal-date/offset2|Template:Cal-date/offset2|1}}|pew{{#expr: {{{getoffsetday}}} + 1}}}}|}} |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |{{#if:1| {{#switch:{{#expr: 1 + 1}} |0=12 |13=1 |{{#expr: 1 + 1}} }} |}}{{#if:| {{#switch:{{{daysinmonth}}} |1=31 |2=29 |3=31 |4=30 |5=31 |6=30 |7=31 |8=31 |9=30 |10=31 |11=30 |12=31 | }}|}}{{#if:|{{#ifeq:{{#expr: ({{{isnextmonth}}} + 1) > Template:Cal-date/offset2 }}|1|1|}}|}}{{#if:|{{#ifeq:{{#expr: ({{{isprevmonth}}} + 1) < 1}}|1|1|}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|Template:Cal-date/offset2|{{{getoffsetmonth}}}}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|{{#if:Template:Cal-date/offset2|Template:Cal-date/offset2|1}}|pew{{#expr: {{{getoffsetday}}} + 1}}}}|}} }}|»]] |- |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 1|1]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 2|2]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 3|3]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 4|4]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 5|5]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 6|6]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 7|7]] |- |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 8|8]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 9|9]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 10|10]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 11|11]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 12|12]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 13|13]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 14|14]] |- |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 15|15]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 16|16]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 17|17]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 18|18]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 19|19]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 20|20]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 21|21]] |- |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 22|22]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 23|23]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 24|24]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 25|25]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 26|26]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 27|27]] |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 28|28]] |- |[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 29|29]] |{{#ifeq:1|2||[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 30|30]]}} |{{#ifeq:{{#if:| {{#switch:{{#expr: {{{monthoffset}}} + 0}} |0=12 |13=1 |{{#expr: {{{monthoffset}}} + 0}} }} |}}{{#if:1| {{#switch:1 |1=31 |2=29 |3=31 |4=30 |5=31 |6=30 |7=31 |8=31 |9=30 |10=31 |11=30 |12=31 | }}|}}{{#if:|{{#ifeq:{{#expr: ({{{isnextmonth}}} + 0) > Template:Cal-date/offset2 }}|1|1|}}|}}{{#if:|{{#ifeq:{{#expr: ({{{isprevmonth}}} + 0) < 1}}|1|1|}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|Template:Cal-date/offset2|{{{getoffsetmonth}}}}}|}}{{#if:|{{#if:Template:Cal-date/offset2Template:Cal-date/offset2|{{#if:Template:Cal-date/offset2|Template:Cal-date/offset2|1}}|pew{{#expr: {{{getoffsetday}}} + 0}}}}|}}|31|[[{{#switch:1 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |1 }} 31|31]]|}} | colspan="4"| |}
{{#if:||}}
- 1933 — Toshiro Ishii (Japanese voice of many characters in the Fight! Super Robot Lifeform Transformers (2010) cartoon(s), including Prowl, Scrapper and Wreck-Gar) is born.
- 1947 — Actor Glynn Turman (General Whalen in Bumblebee) is born.
- 1957 — Philippe Roullier (French voice of several characters in the late dub of 4 episodes of the original cartoon) is born.
- 1958 — Vadim Gushchin (Russian voice of Optimus Prime, Starscream, Grimlock, Cyclonus, Ultra Magnus and more) is born.
- 1961 — Torsten Michaelis (German voice of Jazz and Unicron in the live-action film series) is born.
- 1968 — Chieko Atarashi (Japanese voice of Kelly Bomgartner) is born.
- 1969 — Jorge Badillo (Latin-American Spanish voice Shockwave, Drift, Jack Burns and War for Cybertron Trilogy Hound) is born.
- 1974 — Taketora (Japanese voice of Mudflap, Soundwave and more) is born.
- 1984 — Annalisa Longo (Italian voice of Cody Burns) is born.
- 1986 — The Fight! Super Robot Lifeform Transformers episode "Desertion of the Dinobots, Part 2" premieres in Japan.
- 1987 — The Prizes in Disguise and Decipher the Decepticon contests end.
- 1987 — Marcel Mann (German voice of Dimlit also Hashtag, Skywarp and Nova Storm in EarthSpark - Expedition) is born.
- 1988 — The final day of the Beastformers "Petrified Special Cobrander" mail-away offer.
- 1989 — The Super-God Masterforce episode "The Ultimate Combination!! BlackZarak, the New Lifeform" premieres in Japan.
- 1993 — The Headmasters episode "Crisis on Planet Master" airs in Malaysia.
- 1999 — The Beast Wars episode "Feral Scream Part 1" premieres in the US.
- 2003 — The Legends of the Microns episode "合体 (しんか) - comrade" premieres in Japan.
- 2003 — The Armada episode "Linkup" premieres in the US.
- 2004 — The Energon cartoon premieres in the US with the episode "Cybertron City".
- 2007 — Transformers: The Animated Movie #4 is released in the US by IDW Publishing.
- 2009 — The Transformers Animated episode "Mission Accomplished" premieres in Italy.
- 2011 — Final day where Hasbro toy purchases are eligible for the "Supercharge Your Holidays" promotion.
- 2012 — The Transformers: Dark of the Moon Limited 3D Edition is released to home media.
- 2012 — The Transformers: Prime episode "Crisscross" premieres in Hungary.
- 2013 — The first BotCon 2013 box set exclusive Machine Wars Hoist is revealed.
- 2014 — First day of Transformers 30th Anniversary Exhibition in Arena of Stars, Genting Highlands in Malaysia.
- 2014 — Transformers Cloud: Spacetime World: Guardians of Time Chapter 1: Part 5 is first published.
- 2015 — TakaraTomy releases Movie Advanced Series AD32 Decepticon Stinger.
- 2015 — The Transformers Universe MMO game shuts down without having ever left beta testing.
- 2017 — TakaraTomy releases Unite Warriors UW-EX Megatronia.
- 2018 — Final day to mail off for the TakaraTomy Transformers / Downtown no Gaki no Tsukai ya Arahende!! "Transformer Hamada Robo ~Donarimasu~ & Transformer Matsumoto Robo ~Guchirimasu~" set.
- 2022 — Ekkehardt Belle (German voice of Armada Sideways and Unicron) dies at age 67.
- 2022 — History of the Transformers is released by Calm.
- 2023 — Hasbro Pulse hosts its first fan first livestream of the year, revealing the second wave of Transformers: Legacy Evolution and pre-orders for it go up.
- 2024 — Duke #2 is released by Image Comics and Skybound Entertainment.
- 2025 — The Transformers One: New Adventures episode "Steve Cam" premieres on YouTube.
- 2025 — In-Demand Toys reveals the first look and the EarthSpark deluxes Terran Hashtag and Soundwave.
- 2026 — TakaraTomy releases MPG-17 Optimus Prime Style Gen., TS GE-02 Thundercracker, TS-13 Bumblebee, AOTP-21 Decepticon Flatline, and AOTP-22 Onyx Prime.