The Calendar hole will go live in approximately 9 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 HumanoidCPU 0 142 486ms 3 days ago 81st ovs-code 🇩🇪 0 142 38ms 3 days ago 83rd Lv0Sys 🇵🇱 0 145 20ms 3 days ago 84th ovs-code 🇩🇪 0 148 14ms 2 Nov 2025 85th HumanoidCPU 0 150 17ms 3 days ago 86th Natanaelel 🇸🇪 0 157 51ms 29 hours ago 87th pardouin 🇫🇷 0 163 1,352ms 19 hours ago 88th IISResetMe 0 164 467ms 18 hours ago 89th sean-niemann 🇺🇸 0 170 40ms 4 days ago 90th emplv 🇱🇻 0 172 12ms 34 hours ago 91st lyphyser 0 173 54ms 10 Feb 2025 92nd voytxt 🇨🇿 0 176 12ms 17 hours ago 93rd rucin93 🇵🇱 0 182 11ms 6 hours ago 94th attila8192 0 189 9ms 4 Mar 2025 95th AdrienHache 🇫🇷 0 190 397ms 24 days ago 96th MeWhenI 🇻🇦 0 194 39ms 15 Apr 2025 97th targrik 0 195 9ms 3 days ago 98th kg583 🇺🇸 0 201 43ms 6 May 2025 99th yibotongxue 0 204 15ms 20 Sep 2025 99th Yax42 🇫🇷 0 204 439ms 3 days ago 101st sean-niemann 🇺🇸 0 205 12ms 3 days ago 102nd Andrey-Plotnikov 0 213 9ms 12 Jan 2025 103rd snoozingnewt 🇨🇦 0 217 49ms 12 Oct 2025 104th namelessiw 0 225 382ms 28 Oct 2025 105th targrik 0 226 9ms 9 Apr 2025 106th tomh1012 0 229 436ms 6 hours ago 107th kg583 🇺🇸 0 231 47ms 3 Sep 2025 108th pardouin 🇫🇷 0 241 3,066ms 4 hours ago 109th JOrE20 🇺🇸 0 242 12ms 2 days ago 110th snyderek 🇺🇸 0 244 440ms 15 hours ago 111th CLOStrophobic 🇮🇹 0 250 18ms 7 May 2025 112th kg583 🇺🇸 0 251 8ms 33 hours ago 113th AlephSquirrel 0 253 36ms 2 days ago 114th KasperKivimaeki 🇫🇮 0 269 5ms 21 Oct 2025 115th smclaughlin-cf 0 270 9ms 12 days ago 116th ovs-code 🇩🇪 0 280 179ms 2 days ago 117th aadenboy 🇺🇸 0 293 4ms 3 days ago 118th kmathis22 0 294 486ms 3 days ago 119th nyson 0 307 401ms 17 Jun 2025 120th qrakhen 0 318 537ms 3 hours ago 121st jerrandolph 0 362 261ms 30 Sep 2025 122nd albanian-laundromat 0 386 7ms 15 hours ago 123rd Jacob385 0 450 438ms 29 Jan 2025 124th nate8nate 0 483 6ms 11 May 2025 125th johannes-looney-lizard 0 724 391ms 25 Apr 2025 126th snoozingnewt 🇨🇦 0 868 4ms 4 Oct 2025 First Prev 81–126 of 126