The Calendar hole will go live in approximately 10 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 18 days ago 4th 2bular 0 84 101ms 32 hours ago 5th ovs-code 🇩🇪 0 87 407ms 2 days ago 6th GolfingSuccess 🇬🇷 0 98 529ms 29 Dec 2024 6th CornerMercury 🇬🇧 0 98 542ms 3 days ago 6th kg583 🇺🇸 0 98 532ms 2 days ago 6th pardouin 🇫🇷 0 98 612ms 19 hours ago 10th khvdm 0 99 15ms 28 Dec 2024 10th hallvabo 🇳🇴 0 99 15ms 28 Dec 2024 10th GolfingSuccess 🇬🇷 0 99 16ms 29 Dec 2024 10th btnlq 0 99 15ms 29 Dec 2024 10th m-tkach 🇺🇦 0 99 22ms 27 Apr 2025 10th 5cw 🇺🇸 0 99 15ms 4 May 2025 10th 4atj 0 99 17ms 23 Jun 2025 10th commandblockguy 🇺🇸 0 99 15ms 27 Aug 2025 10th commandblockguy 🇺🇸 0 99 563ms 1 Sep 2025 10th ryyyn 🇺🇸 0 99 15ms 19 Oct 2025 10th sunleonid 0 99 15ms 22 days ago 10th duckyluuk 🇳🇱 0 99 17ms 9 days ago 10th Seek64 🇩🇪 0 99 15ms 6 days ago 10th CornerMercury 🇬🇧 0 99 17ms 3 days ago 10th ovs-code 🇩🇪 0 99 18ms 3 days ago 10th ndren 0 99 18ms 2 days ago 10th AlephSquirrel 0 99 654ms 2 days ago 10th sean-niemann 🇺🇸 0 99 19ms 2 days ago 10th ryyyn 🇺🇸 0 99 724ms 2 days ago 10th bizy-coder 0 99 20ms 2 days ago 10th kg583 🇺🇸 0 99 23ms 2 days ago 10th blaztoma 🇱🇹 0 99 17ms 45 hours ago 10th pardouin 🇫🇷 0 99 16ms 19 hours ago 10th Emutis 🇱🇹 0 99 20ms 18 hours ago 10th lukegustafson 🇺🇸 0 99 24ms 13 hours ago 10th rucin93 🇵🇱 0 99 19ms 4 hours ago 36th AlephSquirrel 0 101 15ms 28 Dec 2024 36th anter69 🇭🇺 0 101 16ms 24 days ago 36th enigma 0 101 17ms 40 hours ago 36th qpwoeirut 0 101 25ms 14 hours ago 36th Mukundan314 0 101 18ms 9 hours ago 41st CaedenHarper 🇨🇦 0 102 487ms 7 Jan 2025 41st CLOStrophobic 🇮🇹 0 102 15ms 19 Jan 2025 41st GolfingSuccess 🇬🇷 0 102 89ms 5 Feb 2025 41st Aquateraneal 0 102 18ms 17 Nov 2025 45th davecame 0 103 16ms 7 May 2025 45th emgordon154 0 103 15ms 21 Jul 2025 45th bricknellj 0 103 17ms 20 Nov 2025 45th ahmetdemirag 🇨🇾 0 103 16ms 2 days ago 45th BREMAUCY 🇫🇷 0 103 17ms 2 days ago 45th luuumine 🇫🇷 0 103 24ms 2 days ago 51st CaedenHarper 🇨🇦 0 104 15ms 7 Jan 2025 51st HPWiz 🇳🇿 0 104 21ms 15 hours ago 53rd KasperKivimaeki 🇫🇮 0 105 16ms 2 days ago 54th Shanethegamer 🇺🇸 0 106 365ms 5 Mar 2025 55th plcc0 0 107 15ms 25 Mar 2025 55th albanian-laundromat 0 107 15ms 20 days ago 57th Matter1024 🇮🇳 0 108 16ms 16 Nov 2025 58th Shanethegamer 🇺🇸 0 109 15ms 29 Dec 2024 58th msbranicky 0 109 20ms 25 hours ago 60th ovs-code 🇩🇪 0 112 6ms 25 Oct 2025 61st 2bular 0 118 3ms 25 Oct 2025 61st bitsandbeyond 🇳🇱 0 118 502ms 26 Oct 2025 63rd aksyristos 0 123 15ms 28 Feb 2025 64th dokutan 0 127 514ms 22 May 2025 65th dokutan 0 128 17ms 22 May 2025 65th Bmrl7 0 128 17ms 29 hours ago 67th jameswmccarty 0 132 15ms 29 Mar 2025 67th paiv 0 132 15ms 16 Jun 2025 69th DialFrost 🇸🇬 0 133 17ms 2 days ago 70th GrayJoKing 🇦🇺 0 134 186ms 24 hours ago 71st stefangimmillaro 0 135 35ms 30 hours ago 72nd croc54 0 137 16ms 7 Feb 2025 73rd TheZwierzLF 🇵🇱 0 139 17ms 3 days ago 74th pardouin 🇫🇷 0 141 46ms 4 hours ago 75th HumanoidCPU 0 142 486ms 2 days ago 75th ovs-code 🇩🇪 0 142 38ms 2 days ago 77th Lv0Sys 🇵🇱 0 145 20ms 2 days ago 78th ovs-code 🇩🇪 0 148 14ms 2 Nov 2025 79th HumanoidCPU 0 150 17ms 2 days ago 80th Natanaelel 🇸🇪 0 157 51ms 3 hours ago 1–80 of 116 Next Last
