May 15
| [[{{#ifeq:15|1|{{#switch:{{#ifeq:5|1|12|{{#expr:5-1}}}} | 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:5-1}}}}
}} {{#switch:{{#ifeq:5|1|12|{{#expr:5-1}}}} |
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:5-1}}}}
}} |
{{#switch:5 | 1=January | 2=February | 3=March | 4=April | 5=May | 6=June | 7=July | 8=August | 9=September | 10=October | 11=November | 12=December | 5
}} {{#expr:15-1}}}}|yesterday]] |
[[{{#ifeq:15|{{#switch:5 | 1=31 | 2=29 | 3=31 | 4=30 | 5=31 | 6=30 | 7=31 | 8=31 | 9=30 | 10=31 | 11=30 | 12=31 | 5
}} |
12|1|{{#expr:5+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:5+1}}}}
}} 1|{{#switch:5 |
1=January | 2=February | 3=March | 4=April | 5=May | 6=June | 7=July | 8=August | 9=September | 10=October | 11=November | 12=December | 5
}} {{#expr:15+1}}}}|tomorrow]] | |||||
}
|- |[[{{#switch:{{#if:5| {{#switch:{{#expr: 5 + -1}} |0=12 |13=1 |{{#expr: 5 + -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:5| {{#switch:{{#expr: 5 + -1}} |0=12 |13=1 |{{#expr: 5 + -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:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }}]] |[[{{#switch:{{#if:5| {{#switch:{{#expr: 5 + 1}} |0=12 |13=1 |{{#expr: 5 + 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:5| {{#switch:{{#expr: 5 + 1}} |0=12 |13=1 |{{#expr: 5 + 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:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 1|1]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 2|2]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 3|3]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 4|4]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 5|5]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 6|6]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 7|7]] |- |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 8|8]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 9|9]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 10|10]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 11|11]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 12|12]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 13|13]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 14|14]] |- |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 15|15]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 16|16]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 17|17]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 18|18]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 19|19]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 20|20]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 21|21]] |- |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 22|22]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 23|23]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 24|24]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 25|25]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 26|26]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 27|27]] |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 28|28]] |- |[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 29|29]] |{{#ifeq:5|2||[[{{#switch:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 30|30]]}} |{{#ifeq:{{#if:| {{#switch:{{#expr: {{{monthoffset}}} + 0}} |0=12 |13=1 |{{#expr: {{{monthoffset}}} + 0}} }} |}}{{#if:5| {{#switch:5 |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:5 |1=January |2=February |3=March |4=April |5=May |6=June |7=July |8=August |9=September |10=October |11=November |12=December |5 }} 31|31]]|}} | colspan="4"| |}
{{#if:||}}
- 1926 — Regis Cordic (voice of Generation 1 Menasor and various Quintessons) is born.
- 1952 — Uli Pleßmann (voice of Dinobot in the German dub of Beast Wars) is born.
- 1967 — Frank Carreño (Latin-American Spanish voice of Cyclonus) is born.
- 1969 — Roberto Gammino (Italian voice of Dutch and voice director of Beast Machines) is born.
- 1970 — Carlos Vitale (Latin-American Spanish voice of Energon Shockblast and Cybertron Landmine) is born.
- 1972 — Jong-deok An (voice of Guiledart and Mach Kick in the Korean dub of Beast Wars Neo) is born.
- 1987 — The Fight! Super Robot Lifeform Transformers 2010 episode "Black Money" airs in Japan.
- 1997 — Emanuela Ionica (Italian voice of Charlie Watson) is born.
- 2003 — Final day to pre-order the e-HOBBY exclusive RoadHauler and Sunstorm set.
- 2003 — Legends of the Microns Silverbolt is released in Japan, both in a single pack and in a larger set with the Street Speed Microns.
- 2006 — The seventh show in the Kiss Players radio drama series airs in Japan on the "Lyrian Moe-tchao" program.
- 2006 — The Super-God Masterforce cartoon is released on DVD in the UK by Metrodome.
- 2009 — The first six chapters of the Henkei! Henkei! Transformers manga serialized in Comic BunBun is released in a collected format by Poplar.
- 2009 — The Henkei! Henkei! Transformers manga chapter "Creation! The New Emperor of Destruction!!" is serialized in Japan in Comic BunBun's June 2009 issue.
- 2010 — The Transformers Animated episode "Challenge of the Burning Giant" debuts in Japan.
- 2013 — Regeneration One #91, Rage of the Dinobots TPB and a second printing of Fall of Cybertron are released by IDW Publishing.
- 2014 — The second big "payoff" trailer for Age of Extinction is released on YouTube.
- 2015 — John Stephenson (voice of Generation 1 Thundercracker, Kup, Alpha Trion, Windcharger and others) passes away at the age of 91.
- 2017 — First day of the Valvoline's The Last Knight "Valvotron" promotion: purchasing a "full synthetic oil change" would net you the figure. An Autobot-branded lunchbox could also be one with no purchase necessary.
- 2018 — The Power of the Primes episode "Without Warning" premieres on go90 and Tumblr.
- 2018 — José Lavat (Mexican voice of Unicron in Predacons Rising) dies.
- 2018 — Writer Dean Stefan dies.
- 2019 — Transformers #5 is released by IDW Publishing. Transformers: The Definitive G1 Collection Volume 58: Shockpoint is released by Hachette Paperworks.
- 2020 — Actor Fred Willard (voice of Swindle on Transformers Animated) passes away at the age of 86 due to cardiac arrest.
- 2020 — First day of preorders on TakaraTomy Mall for Generations Selects God Neptune.
- 2020 — The Generations Selects Special Comic God Neptune comic 1 is first published.
- 2021 — The Rescue Bots Academy episodes "X Marks the Bot" and Making Tracks" premieres in the United States.
- 2024 — First day of the Til All Are One: Transformers 40th Anniversary Reunion Screening in theatres.
- 2024 — Hasbro Pulse puts preorders up for the Missing Link C-03 Bumblebee & C-04 Cliffjumper.
- 2024 — Rooster Teeth and its website are officially shut down.
- 2024 — Transformers Go! Go! #38 is published.