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 24 hours ago 5th GolfingSuccess 🇬🇷 0 98 529ms 29 Dec 2024 5th CornerMercury 🇬🇧 0 98 542ms 26 hours ago 5th kg583 🇺🇸 0 98 532ms 13 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 26 hours ago 8th ovs-code 🇩🇪 0 99 18ms 26 hours ago 8th ndren 0 99 18ms 24 hours ago 8th AlephSquirrel 0 99 654ms 23 hours ago 8th sean-niemann 🇺🇸 0 99 19ms 20 hours ago 8th ryyyn 🇺🇸 0 99 724ms 16 hours ago 8th bizy-coder 0 99 20ms 13 hours ago 8th kg583 🇺🇸 0 99 23ms 13 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 22 hours ago 35th BREMAUCY 🇫🇷 0 103 17ms 20 hours ago 35th luuumine 🇫🇷 0 103 24ms 3 hours ago 41st CaedenHarper 🇨🇦 0 104 15ms 7 Jan 2025 42nd KasperKivimaeki 🇫🇮 0 105 16ms 24 hours ago 43rd Shanethegamer 🇺🇸 0 106 365ms 5 Mar 2025 44th plcc0 0 107 15ms 25 Mar 2025 44th albanian-laundromat 0 107 15ms 18 days ago 46th Matter1024 🇮🇳 0 108 16ms 16 Nov 2025 47th Shanethegamer 🇺🇸 0 109 15ms 29 Dec 2024 48th enigma 0 111 17ms 49 mins ago 49th ovs-code 🇩🇪 0 112 6ms 25 Oct 2025 50th 2bular 0 118 3ms 25 Oct 2025 50th bitsandbeyond 🇳🇱 0 118 502ms 26 Oct 2025 52nd aksyristos 0 123 15ms 28 Feb 2025 53rd dokutan 0 127 514ms 22 May 2025 54th dokutan 0 128 17ms 22 May 2025 55th jameswmccarty 0 132 15ms 29 Mar 2025 55th paiv 0 132 15ms 16 Jun 2025 57th DialFrost 🇸🇬 0 133 17ms 23 hours ago 58th croc54 0 137 16ms 7 Feb 2025 59th TheZwierzLF 🇵🇱 0 139 17ms 26 hours ago 60th HumanoidCPU 0 142 486ms 16 hours ago 60th ovs-code 🇩🇪 0 142 38ms 2 hours ago 62nd Lv0Sys 🇵🇱 0 145 20ms 100 mins ago 63rd ovs-code 🇩🇪 0 148 14ms 2 Nov 2025 64th HumanoidCPU 0 150 17ms 16 hours ago 65th sean-niemann 🇺🇸 0 170 40ms 25 hours ago 66th stefangimmillaro 0 171 34ms 7 hours ago 67th lyphyser 0 173 54ms 10 Feb 2025 68th attila8192 0 189 9ms 4 Mar 2025 68th voytxt 🇨🇿 0 189 9ms 13 days ago 70th AdrienHache 🇫🇷 0 190 397ms 21 days ago 71st MeWhenI 🇻🇦 0 194 39ms 15 Apr 2025 72nd targrik 0 195 9ms 6 hours ago 73rd kg583 🇺🇸 0 201 43ms 6 May 2025 74th snoozingnewt 🇨🇦 0 202 15ms 4 Oct 2025 75th rucin93 🇵🇱 0 203 9ms 4 Mar 2025 76th yibotongxue 0 204 15ms 20 Sep 2025 76th Yax42 🇫🇷 0 204 466ms 20 hours ago 78th sean-niemann 🇺🇸 0 205 12ms 11 hours ago 79th emplv 🇱🇻 0 209 10ms 16 mins ago 80th Andrey-Plotnikov 0 213 9ms 12 Jan 2025 1–80 of 97 Next Last
