The Calendar hole will go live in approximately 5 days. Why not try and solve it ahead of time?
Calendar in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 81st martindotexe 🇳🇴 0 135 18ms 12 hours ago 82nd NoneTheFewer 0 136 16ms 3 hours ago 83rd croc54 0 137 16ms 7 Feb 2025 84th TheZwierzLF 🇵🇱 0 139 17ms 7 days ago 85th pardouin 🇫🇷 0 141 44ms 4 days ago 86th HumanoidCPU 0 142 486ms 7 days ago 86th ovs-code 🇩🇪 0 142 35ms 6 days ago 88th Lv0Sys 🇵🇱 0 145 20ms 6 days ago 89th ovs-code 🇩🇪 0 148 14ms 2 Nov 2025 90th HumanoidCPU 0 150 17ms 7 days ago 91st Natanaelel 🇸🇪 0 157 39ms 4 days ago 92nd IISResetMe 0 161 294ms 9 hours ago 93rd pardouin 🇫🇷 0 163 1,352ms 4 days ago 94th sean-niemann 🇺🇸 0 170 40ms 7 days ago 95th emplv 🇱🇻 0 172 12ms 5 days ago 96th lyphyser 0 173 54ms 10 Feb 2025 97th voytxt 🇨🇿 0 176 11ms 4 days ago 98th rucin93 🇵🇱 0 180 11ms 39 hours ago 99th targrik 0 184 9ms 2 days ago 100th lukegustafson 🇺🇸 0 185 13ms 2 days ago 101st attila8192 0 189 9ms 4 Mar 2025 102nd AdrienHache 🇫🇷 0 190 397ms 27 Nov 2025 103rd MeWhenI 🇻🇦 0 192 40ms 31 hours ago 104th kg583 🇺🇸 0 201 43ms 6 May 2025 104th olleicua 🇺🇸 0 201 36ms 4 hours ago 106th yibotongxue 0 204 15ms 20 Sep 2025 106th Yax42 🇫🇷 0 204 429ms 7 days ago 108th sean-niemann 🇺🇸 0 205 12ms 7 days ago 109th Andrey-Plotnikov 0 213 9ms 12 Jan 2025 110th snoozingnewt 🇨🇦 0 217 40ms 12 Oct 2025 111th namelessiw 0 225 382ms 28 Oct 2025 112th targrik 0 226 9ms 9 Apr 2025 113th KasperKivimaeki 🇫🇮 0 227 3ms 19 hours ago 114th tomh1012 0 229 400ms 3 days ago 115th madex 🇩🇪 0 230 3ms 3 days ago 115th Protothor 0 230 11ms 23 hours ago 117th kg583 🇺🇸 0 231 44ms 3 Sep 2025 118th pardouin 🇫🇷 0 241 2,748ms 3 days ago 119th JOrE20 🇺🇸 0 242 11ms 5 days ago 120th snyderek 🇺🇸 0 244 425ms 4 days ago 121st CLOStrophobic 🇮🇹 0 250 18ms 7 May 2025 122nd kg583 🇺🇸 0 251 8ms 4 days ago 123rd AlephSquirrel 0 253 26ms 6 days ago 124th CaedenHarper 🇨🇦 0 255 261ms 33 hours ago 125th smclaughlin-cf 0 270 9ms 15 days ago 126th ovs-code 🇩🇪 0 280 153ms 6 days ago 127th aadenboy 🇺🇸 0 293 4ms 6 days ago 128th kmathis22 0 294 486ms 6 days ago 129th nyson 0 307 387ms 17 Jun 2025 130th qrakhen 0 318 407ms 3 days ago 131st CaedenHarper 🇨🇦 0 337 426ms 12 hours ago 132nd jerrandolph 0 362 261ms 30 Sep 2025 133rd albanian-laundromat 0 386 5ms 4 days ago 134th Jacob385 0 450 438ms 29 Jan 2025 135th nate8nate 0 483 7ms 11 May 2025 136th johannes-looney-lizard 0 724 391ms 25 Apr 2025 137th snoozingnewt 🇨🇦 0 868 4ms 4 Oct 2025 138th JOrE20 🇺🇸 0 1,000 60ms 18 hours ago 138th JOrE20 🇺🇸 0 1,000 245ms 18 hours ago First Prev 81–139 of 139