The Calendar hole will go live in approximately 12 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 1st 2bular 0 42 32ms 19 Oct 2025 2nd ovs-code 🇩🇪 0 44 33ms 19 Oct 2025 2nd GolfingSuccess 🇬🇷 0 44 31ms 16 days ago 4th ovs-code 🇩🇪 0 87 407ms 17 hours ago 5th GolfingSuccess 🇬🇷 0 98 529ms 29 Dec 2024 5th CornerMercury 🇬🇧 0 98 542ms 19 hours ago 5th kg583 🇺🇸 0 98 532ms 6 hours ago 8th khvdm 0 99 15ms 28 Dec 2024 8th hallvabo 🇳🇴 0 99 15ms 28 Dec 2024 8th GolfingSuccess 🇬🇷 0 99 16ms 29 Dec 2024 8th btnlq 0 99 15ms 29 Dec 2024 8th m-tkach 🇺🇦 0 99 22ms 27 Apr 2025 8th 5cw 🇺🇸 0 99 15ms 4 May 2025 8th 4atj 0 99 17ms 23 Jun 2025 8th commandblockguy 🇺🇸 0 99 15ms 27 Aug 2025 8th commandblockguy 🇺🇸 0 99 563ms 1 Sep 2025 8th ryyyn 🇺🇸 0 99 15ms 19 Oct 2025 8th sunleonid 0 99 15ms 20 days ago 8th duckyluuk 🇳🇱 0 99 17ms 7 days ago 8th Seek64 🇩🇪 0 99 15ms 4 days ago 8th CornerMercury 🇬🇧 0 99 17ms 19 hours ago 8th ovs-code 🇩🇪 0 99 18ms 19 hours ago 8th ndren 0 99 18ms 17 hours ago 8th AlephSquirrel 0 99 654ms 16 hours ago 8th sean-niemann 🇺🇸 0 99 19ms 13 hours ago 8th ryyyn 🇺🇸 0 99 724ms 9 hours ago 8th bizy-coder 0 99 20ms 6 hours ago 8th kg583 🇺🇸 0 99 23ms 6 hours ago 29th AlephSquirrel 0 101 15ms 28 Dec 2024 29th anter69 🇭🇺 0 101 16ms 22 days ago 31st CaedenHarper 🇨🇦 0 102 487ms 7 Jan 2025 31st CLOStrophobic 🇮🇹 0 102 15ms 19 Jan 2025 31st GolfingSuccess 🇬🇷 0 102 89ms 5 Feb 2025 31st Aquateraneal 0 102 18ms 17 Nov 2025 35th davecame 0 103 16ms 7 May 2025 35th emgordon154 0 103 15ms 21 Jul 2025 35th bricknellj 0 103 20ms 20 Nov 2025 35th ahmetdemirag 🇨🇾 0 103 16ms 15 hours ago 35th BREMAUCY 🇫🇷 0 103 17ms 13 hours ago 40th CaedenHarper 🇨🇦 0 104 15ms 7 Jan 2025 41st KasperKivimaeki 🇫🇮 0 105 16ms 17 hours ago 42nd Shanethegamer 🇺🇸 0 106 365ms 5 Mar 2025 43rd plcc0 0 107 15ms 25 Mar 2025 43rd albanian-laundromat 0 107 15ms 18 days ago 45th Matter1024 🇮🇳 0 108 16ms 16 Nov 2025 46th Shanethegamer 🇺🇸 0 109 15ms 29 Dec 2024 47th ovs-code 🇩🇪 0 112 6ms 25 Oct 2025 48th 2bular 0 118 3ms 25 Oct 2025 48th bitsandbeyond 🇳🇱 0 118 514ms 26 Oct 2025 50th aksyristos 0 123 15ms 28 Feb 2025 51st dokutan 0 127 514ms 22 May 2025 52nd dokutan 0 128 17ms 22 May 2025 53rd jameswmccarty 0 132 15ms 29 Mar 2025 53rd paiv 0 132 15ms 16 Jun 2025 55th DialFrost 🇸🇬 0 133 17ms 16 hours ago 56th croc54 0 137 16ms 7 Feb 2025 57th TheZwierzLF 🇵🇱 0 139 17ms 19 hours ago 58th HumanoidCPU 0 142 486ms 10 hours ago 59th ovs-code 🇩🇪 0 143 35ms 2 hours ago 60th ovs-code 🇩🇪 0 148 14ms 2 Nov 2025 61st HumanoidCPU 0 150 17ms 10 hours ago 62nd sean-niemann 🇺🇸 0 170 40ms 19 hours ago 63rd stefangimmillaro 0 171 39ms 17 mins ago 64th lyphyser 0 173 54ms 10 Feb 2025 65th attila8192 0 189 9ms 4 Mar 2025 65th voytxt 🇨🇿 0 189 9ms 12 days ago 67th AdrienHache 🇫🇷 0 190 397ms 21 days ago 68th MeWhenI 🇻🇦 0 194 39ms 15 Apr 2025 69th targrik 0 195 9ms 11 mins ago 70th kg583 🇺🇸 0 201 43ms 6 May 2025 71st snoozingnewt 🇨🇦 0 202 15ms 4 Oct 2025 72nd rucin93 🇵🇱 0 203 9ms 4 Mar 2025 73rd yibotongxue 0 204 15ms 20 Sep 2025 73rd Yax42 🇫🇷 0 204 466ms 13 hours ago 75th sean-niemann 🇺🇸 0 205 12ms 4 hours ago 76th Andrey-Plotnikov 0 213 9ms 12 Jan 2025 77th snoozingnewt 🇨🇦 0 217 49ms 12 Oct 2025 78th namelessiw 0 225 382ms 28 Oct 2025 79th targrik 0 226 9ms 9 Apr 2025 80th kg583 🇺🇸 0 231 47ms 3 Sep 2025 1–80 of 91 Next Last
