The Calendar hole will go live in approximately 6 days. Why not try and solve it ahead of time?
Day of Week 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 880th KatieLG 🇬🇧 794 74 366ms 30 Apr 2024 880th codewrite 🇬🇧 794 74 348ms 19 Apr 2025 883rd MichalMarsalek 🇨🇿 793 103 13ms 16 Apr 2023 883rd adamnielson42 🇺🇸 793 103 18ms 4 May 2023 883rd NickTheEASDude 🇺🇸 793 103 14ms 29 Jan 2024 883rd CutSandstone 793 103 13ms 4 Jul 2024 883rd NanduBC 793 103 23ms 3 Sep 2024 883rd FEZfan 🇦🇺 793 103 24ms 18 Apr 2025 883rd RaBa21 🇭🇺 793 103 13ms 19 Jul 2025 883rd TheZwierzLF 🇵🇱 793 103 14ms 21 Nov 2025 891st Steffan153 🇫🇮 792 76 16ms 16 Apr 2023 891st GrayJoKing 🇦🇺 792 76 15ms 17 Apr 2023 891st Lydxn 🇨🇦 792 76 15ms 26 May 2023 891st ovs-code 🇩🇪 792 76 15ms 2 Jul 2024 895th epic-programmer-guy 792 94 362ms 15 Apr 2024 896th Steffan153 🇫🇮 792 96 80ms 18 Apr 2023 896th lynn 792 96 81ms 16 Oct 2023 898th Steffan153 🇫🇮 790 153 272ms 28 Apr 2023 899th MeWhenI 🇻🇦 790 245 4ms 15 Sep 2024 900th SirBogman 🇺🇸 789 215 41ms 3 Jun 2025 901st TinyPandas 788 106 4ms 12 Sep 2023 901st TheLastZombie 788 106 3ms 15 May 2024 903rd commandblockguy 🇺🇸 788 137 142ms 3 Aug 2023 904th MeWhenI 🇻🇦 788 158 703ms 20 Aug 2023 904th sean-niemann 🇺🇸 788 158 720ms 22 Aug 2024 904th Steffan153 🇫🇮 788 158 719ms 22 Aug 2024 907th blaztoma 🇱🇹 785 48 47ms 19 Oct 2025 907th beirigo 🇧🇷 785 48 44ms 30 Oct 2025 909th SirBogman 🇺🇸 785 89 36ms 4 Dec 2023 910th OllieBoyne 🇬🇧 785 104 23ms 17 Apr 2023 910th Eilonlif 🇮🇱 785 104 21ms 17 Apr 2023 910th Ripick 785 104 24ms 12 May 2023 910th eddvrs 785 104 21ms 18 May 2023 910th fbe 785 104 22ms 26 May 2023 910th Wildst 785 104 14ms 6 Jul 2023 910th cefqrn 785 104 23ms 1 Nov 2023 910th bsoyka 🇺🇸 785 104 21ms 25 Nov 2023 910th neihousaigaai 785 104 21ms 11 Feb 2024 910th wilhelmines 785 104 13ms 1 Jun 2024 910th jiaminglimjm 🇲🇾 785 104 21ms 5 Jul 2024 910th JesseNoEyes 🇺🇸 785 104 13ms 18 Sep 2024 910th Rago-Tony 785 104 22ms 11 Jul 2025 923rd hotmanga 784 136 286ms 26 Oct 2023 924th emgordon154 784 245 255ms 19 Apr 2025 925th kxwish 🇨🇦 783 86 50ms 12 Sep 2023 925th Maximizer02 783 86 49ms 17 Sep 2025 925th jateute 783 86 50ms 27 Oct 2025 928th stefangimmillaro 782 217 44ms 26 Apr 2025 929th snoozingnewt 🇨🇦 781 93 121ms 11 days ago 930th janAkali 🇷🇺 780 76 354ms 15 May 2024 931st DialFrost 🇸🇬 780 107 4ms 1 Sep 2025 932nd retrohun 779 104 179ms 16 Jun 2024 933rd bbnumber2 778 105 14ms 29 Oct 2023 933rd keelimeguy 🇺🇸 778 105 14ms 16 Nov 2023 933rd PowershellKnut 🇳🇴 778 105 23ms 7 Jan 2024 933rd samual-hain 778 105 21ms 4 Apr 2024 933rd gallium-gonzollium 778 105 23ms 25 Aug 2024 933rd ihatethefrench 778 105 14ms 3 Jan 2025 939th typeswitch-dev 🇵🇹 776 232 8ms 22 Jul 2023 940th AlephSquirrel 775 96 9ms 6 May 2025 941st Sinescape 774 87 53ms 16 Sep 2024 941st BREMAUCY 🇫🇷 774 87 46ms 12 days ago 943rd MeWhenI 🇻🇦 774 213 1,792ms 14 Jan 2025 944th kkoenig 773 133 415ms 23 Dec 2023 945th MrPsyware 773 138 274ms 20 Mar 2024 946th Aquateraneal 771 106 18ms 11 Aug 2025 946th imoxyg 771 106 22ms 29 Aug 2025 948th MeWhenI 🇻🇦 769 49 41ms 25 Dec 2023 948th GrayJoKing 🇦🇺 769 49 37ms 26 Dec 2023 948th Natanaelel 🇸🇪 769 49 41ms 26 Dec 2023 948th DialFrost 🇸🇬 769 49 78ms 20 Dec 2024 952nd KasperKivimaeki 🇫🇮 767 134 2,632ms 26 Oct 2025 953rd funnyboy-roks 766 88 50ms 15 Jun 2024 954th msbranicky 766 115 59ms 3 Jan 2024 955th MeWhenI 🇻🇦 765 57 6ms 28 May 2023 956th MeWhenI 🇻🇦 765 95 144ms 17 Apr 2023 956th Yewzir 🇧🇪 765 95 158ms 12 May 2023 958th sean-niemann 🇺🇸 765 114 41ms 8 May 2023 959th alemelis 765 158 278ms 21 Apr 2023 960th jmerle 🇳🇱 764 163 708ms 15 Jun 2023 First Prev 881–960 of 1,439 Next Last