The Calendar hole will go live in approximately 10 days. Why not try and solve it ahead of time?
Day of Week in all languages in chars. 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 Chars Time Submitted 873rd Pyroan 720 91 20ms 16 Apr 2025 873rd bknower 720 91 21ms 27 Jun 2025 883rd emplv 🇱🇻 718 83 201ms 28 Mar 2025 884th BREMAUCY 🇫🇷 717 85 372ms 14 days ago 885th dteague3989 717 94 11ms 27 May 2023 885th Ralac07 🇦🇺 717 94 51ms 4 Jul 2024 887th ian-h-chamberlain 🇺🇸 717 268 212ms 25 days ago 888th sisyphus-ppcg 🇦🇺 716 66 121ms 17 Apr 2023 888th primo-ppcg 🇹🇭 716 66 112ms 22 Apr 2023 888th Natanaelel 🇸🇪 716 66 165ms 8 Jun 2025 891st kops-cg 716 84 17ms 18 Mar 2025 892nd hacker112 🇸🇪 715 61 5ms 22 Jun 2024 893rd Yewzir 🇧🇪 715 122 44ms 28 Oct 2023 894th damoc1es 712 92 14ms 16 Apr 2023 894th celiendonze 🇨🇭 712 92 13ms 17 Apr 2023 894th CarsonChr 🇺🇸 712 92 13ms 20 Apr 2023 894th kyleclaassen 712 92 14ms 24 May 2023 894th b10011 🇫🇮 712 92 14ms 12 Jun 2023 894th rollershutter 712 92 13ms 20 Jun 2023 894th RomanHauksson 712 92 14ms 20 Jul 2023 894th cros107 🇦🇺 712 92 21ms 18 Aug 2023 894th Mikey-Beep 🇬🇧 712 92 13ms 25 Aug 2023 894th m42km 712 92 21ms 13 Nov 2023 894th knutae 🇳🇴 712 92 21ms 13 Nov 2023 894th cubed-guy 712 92 13ms 6 Dec 2023 894th andrewjc2000 712 92 15ms 10 Feb 2024 894th ziselsberger 712 92 33ms 8 Oct 2024 894th croc54 712 92 13ms 29 Dec 2024 894th Troon 712 92 13ms 12 Mar 2025 894th mathieurodic 712 92 16ms 21 Oct 2025 894th retrohun 712 92 13ms 6 Nov 2025 894th jared-hughes 712 92 15ms 2 hours ago 913th Shanethegamer 🇺🇸 711 53 39ms 16 Apr 2023 913th SirBogman 🇺🇸 711 53 38ms 16 Oct 2023 913th annaproxy 711 53 45ms 16 Oct 2023 913th olleicua 🇺🇸 711 53 46ms 24 Dec 2023 913th Yewzir 🇧🇪 711 53 35ms 26 Dec 2023 913th FlorianCassayre 🇫🇷 711 53 43ms 20 May 2024 913th jipsong 🇩🇪 711 53 48ms 26 Jul 2024 913th xyangst 711 53 64ms 3 Oct 2024 913th tatzyr 🇯🇵 711 53 39ms 9 Nov 2024 913th edsrzf 🇳🇿 711 53 39ms 23 Nov 2024 913th BREMAUCY 🇫🇷 711 53 49ms 30 Dec 2024 913th Andriamanitra 🇫🇮 711 53 46ms 12 Jan 2025 913th CaedenHarper 🇨🇦 711 53 58ms 31 Aug 2025 913th fuzzylojik-golf 🇺🇸 711 53 42ms 13 Sep 2025 927th DialFrost 🇸🇬 711 189 6ms 18 days ago 928th MeWhenI 🇻🇦 710 124 59ms 17 Apr 2023 929th dezconnect 704 93 14ms 26 Jun 2023 929th arjunprakash027 704 93 22ms 8 Aug 2025 929th butnaruteodor 704 93 14ms 31 Oct 2025 932nd snyderek 🇺🇸 704 146 3,137ms 30 Oct 2024 933rd liviucerchez 703 62 5ms 21 Oct 2023 933rd PowershellKnut 🇳🇴 703 62 5ms 17 Mar 2024 933rd xyangst 703 62 5ms 3 Oct 2024 936th MarcMush 🇫🇷 699 116 702ms 13 Jan 2024 937th primo-ppcg 🇹🇭 698 54 38ms 22 Apr 2023 937th anter69 🇭🇺 698 54 44ms 12 Feb 2024 937th KatieLG 🇬🇧 698 54 40ms 9 Jun 2024 937th akiratee 698 54 36ms 31 Oct 2025 941st hellwue 697 94 32ms 28 Apr 2023 941st eiburns 697 94 32ms 28 Apr 2023 941st Vaekor 697 94 13ms 9 Jul 2023 941st anonymaew 697 94 14ms 19 Aug 2023 941st epic-programmer-guy 697 94 13ms 21 Dec 2023 941st Jaydosu 697 94 15ms 28 Jun 2024 941st Schreipfelerer 697 94 13ms 11 Sep 2024 941st sheeperino 🇮🇹 697 94 14ms 12 Oct 2024 941st Europe2048 697 94 14ms 30 Nov 2024 941st lelbal 697 94 13ms 6 Nov 2025 951st voytxt 🇨🇿 696 23 304ms 24 Apr 2023 951st klixel 🇨🇦 696 23 313ms 17 May 2023 951st 4hg 🇺🇸 696 23 282ms 14 Jul 2023 954th nathanadams 🇳🇿 695 97 11ms 22 Apr 2023 955th blaztoma 🇱🇹 695 198 108ms 22 days ago 956th alphafalfa 694 63 3ms 6 Nov 2024 957th ListeriaM 694 148 2,919ms 20 Aug 2023 958th DialFrost 🇸🇬 694 387 476ms 29 Jan 2025 959th Apataras 693 106 421ms 24 Jun 2025 960th jacobly0 🇺🇸 693 359 1,709ms 22 Apr 2024 First Prev 881–960 of 1,433 Next Last