April 9
| [[{{#ifeq:9|1|{{#switch:{{#ifeq:4|1|12|{{#expr:4-1}}}} | 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:4-1}}}}
}} {{#switch:{{#ifeq:4|1|12|{{#expr:4-1}}}} |
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:4-1}}}}
}} |
{{#switch:4 | 1=January | 2=February | 3=March | 4=April | 5=May | 6=June | 7=July | 8=August | 9=September | 10=October | 11=November | 12=December | 4
}} {{#expr:9-1}}}}|yesterday]] |
[[{{#ifeq:9|{{#switch:4 | 1=31 | 2=29 | 3=31 | 4=30 | 5=31 | 6=30 | 7=31 | 8=31 | 9=30 | 10=31 | 11=30 | 12=31 | 4
}} |
12|1|{{#expr:4+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:4+1}}}}
}} 1|{{#switch:4 |
1=January | 2=February | 3=March | 4=April | 5=May | 6=June | 7=July | 8=August | 9=September | 10=October | 11=November | 12=December | 4
}} {{#expr:9+1}}}}|tomorrow]] | |||||
}
|- |[[{{#switch:{{#if:4| {{#switch:{{#expr: 4 + -1}} |0=12 |13=1 |{{#expr: 4 + -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:4| {{#switch:{{#expr: 4 + -1}} |0=12 |13=1 |{{#expr: 4 + -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:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }}]] |[[{{#switch:{{#if:4| {{#switch:{{#expr: 4 + 1}} |0=12 |13=1 |{{#expr: 4 + 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:4| {{#switch:{{#expr: 4 + 1}} |0=12 |13=1 |{{#expr: 4 + 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:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 1|1]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 2|2]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 3|3]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 4|4]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 5|5]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 6|6]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 7|7]] |- |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 8|8]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 9|9]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 10|10]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 11|11]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 12|12]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 13|13]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 14|14]] |- |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 15|15]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 16|16]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 17|17]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 18|18]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 19|19]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 20|20]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 21|21]] |- |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 22|22]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 23|23]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 24|24]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 25|25]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 26|26]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 27|27]] |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 28|28]] |- |[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 29|29]] |{{#ifeq:4|2||[[{{#switch:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 30|30]]}} |{{#ifeq:{{#if:| {{#switch:{{#expr: {{{monthoffset}}} + 0}} |0=12 |13=1 |{{#expr: {{{monthoffset}}} + 0}} }} |}}{{#if:4| {{#switch:4 |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:4 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |4 }} 31|31]]|}} | colspan="4"| |}
{{#if:||}}
- 1959 — Sheila Dorfman (Brazilian voice of Judy Witwicky) is born.
- 1962 — Stefan Berglund (Swedish voice of Bulkhead, Crosswise, Landmine, Red Alert and Scorponok) is born.
- 1990 — Morgana Bernabucci (Brazilian voice of Arcee) is born.
- 1991 — Amber Lee Connors (voice of Windblade in Transformers: Tactical Arena) is born.
- 2003 — Armada #10 is released by Dreamwave Productions.
- 2004 — Horrifying Energon marathon! Four new episodes premiere in the US: "Starscream the Mysterious Mercenary", "Battle of the Asteroid Belt", "Energon Tower", and "The Legend of Rodimus".
- 2004 — One-fourth less horrifying! The Super Link episode "Energon Grid Engaged" premieres in Japan.
- 2005 — Jacques Ferrière (European French voice of Starscream, Grimlock, Hound, Sparkplug Witwicky and various others in the original cartoon) dies aged 72.
- 2008 — Best of UK: Space Pirates #2 and "Focus on: Decepticons!" are released by IDW Publishing.
- 2009 — Armada — Volume Two is released on DVD in Germany by New KSM.
- 2011 — The Transformers: Prime episode "Speed Metal" premieres on The Hub.
- 2012 — Takeshi Aono (voice of Deathsaurus) dies of an aortic aneurysm at age 75.
- 2012 — The Transformers: Prime episode "One Shall Fall" premieres in Brazil.
- 2013 — The Transformers: Rescue Bots episode "Small Blessings" premieres in Brazil.
- 2016 — Third day of BotCon 2016 in Louisville, Kentucky.
- 2016 — The Robots in Disguise episode "Portals" premieres on Cartoon Network UK, while "Bumblebee's Night Off" premieres on Cartoon Network USA.
- 2019 — Bumblebee is released on DVD in Brazil.
- 2021 — The Hasbro Pulse Fan Fest 2021 virtual convention goes live on YouTube, with a Transformers panel to unveil concept art for the final chapter of the War for Cybertron Trilogy cartoon, IDW Publishing's Shattered Glass comic, and Generations toys.
- 2021 — Rapper DMX passes away at age 50.
- 2023 — The Beast Wars Again episode "Enter the Super Lifeform Transformers!! (Part 2)" airs on TV Tokyo.
- 2023 — Final day of the Rise of the Beasts Optimus Prime & Optimus Primal World Tour in Madrid, Spain.
- 2024 — On this Transformers Tuesday reissues for the Studio Series Gamer Edition Optimus Prime and Earthrise Optimus Prime go up for pre-order.
- 2025 — Transformers #19 is released by Image Comics and Skybound Entertainment.
- 2025 — The Wild King episode "The Hero Who Descends from the Sky!" premieres on the TakaraTomy YouTube channel.