The Calendar hole will go live in approximately 13 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 721st ShepardToTheStars 794 74 370ms 4 Jan 2024 721st KatieLG 🇬🇧 794 74 380ms 30 Apr 2024 721st codewrite 🇬🇧 794 74 363ms 19 Apr 2025 724th Steffan153 🇫🇮 792 76 16ms 16 Apr 2023 724th GrayJoKing 🇦🇺 792 76 15ms 17 Apr 2023 724th Lydxn 🇨🇦 792 76 15ms 26 May 2023 724th ovs-code 🇩🇪 792 76 15ms 2 Jul 2024 728th Steffan153 🇫🇮 792 96 103ms 18 Apr 2023 728th lynn 792 96 90ms 16 Oct 2023 730th Lydxn 🇨🇦 790 75 145ms 18 Apr 2023 730th Shanethegamer 🇺🇸 790 75 121ms 21 Apr 2023 730th MeWhenI 🇻🇦 790 75 123ms 26 May 2023 730th jipsong 🇩🇪 790 75 120ms 13 Oct 2023 730th edsrzf 🇳🇿 790 75 121ms 23 Sep 2024 735th SirBogman 🇺🇸 789 215 41ms 3 Jun 2025 736th TinyPandas 788 106 3ms 12 Sep 2023 736th TheLastZombie 788 106 3ms 15 May 2024 738th MeWhenI 🇻🇦 788 158 703ms 20 Aug 2023 738th sean-niemann 🇺🇸 788 158 720ms 22 Aug 2024 738th Steffan153 🇫🇮 788 158 719ms 22 Aug 2024 741st albanian-laundromat 788 206 5ms 6 Jul 2025 742nd blaztoma 🇱🇹 785 48 56ms 19 Oct 2025 742nd beirigo 🇧🇷 785 48 34ms 30 Oct 2025 744th SirBogman 🇺🇸 785 89 36ms 4 Dec 2023 745th hotmanga 784 136 286ms 26 Oct 2023 746th emgordon154 784 245 255ms 19 Apr 2025 747th kxwish 🇨🇦 783 86 50ms 12 Sep 2023 747th Maximizer02 783 86 49ms 17 Sep 2025 747th jateute 783 86 50ms 27 Oct 2025 750th stefangimmillaro 782 217 44ms 26 Apr 2025 751st snoozingnewt 🇨🇦 781 93 121ms 3 days ago 752nd janAkali 🇷🇺 780 76 354ms 15 May 2024 753rd DialFrost 🇸🇬 780 107 3ms 1 Sep 2025 754th retrohun 779 104 189ms 16 Jun 2024 755th typeswitch-dev 🇵🇹 776 232 8ms 22 Jul 2023 756th AlephSquirrel 775 96 9ms 6 May 2025 757th Sinescape 774 87 53ms 16 Sep 2024 757th BREMAUCY 🇫🇷 774 87 46ms 4 days ago 759th MeWhenI 🇻🇦 774 213 1,792ms 14 Jan 2025 760th kkoenig 773 133 505ms 23 Dec 2023 761st MrPsyware 773 138 274ms 20 Mar 2024 762nd commandblockguy 🇺🇸 771 85 14ms 16 Apr 2023 762nd 5cw 🇺🇸 771 85 13ms 16 Apr 2023 762nd SirBogman 🇺🇸 771 85 16ms 17 Apr 2023 762nd janbehrens 🇩🇪 771 85 14ms 15 May 2023 762nd bobbysq 771 85 13ms 27 May 2023 762nd PikeIt 771 85 15ms 26 Jun 2023 762nd ovs-code 🇩🇪 771 85 13ms 2 Oct 2023 762nd inventshah 771 85 15ms 2 Oct 2023 762nd nwellnhof 🇩🇪 771 85 13ms 2 Oct 2023 762nd 4hg 🇺🇸 771 85 14ms 4 Oct 2023 762nd Rubiksmath 771 85 13ms 5 Oct 2023 762nd StefanHabel 🇨🇦 771 85 14ms 12 Oct 2023 762nd lynn 771 85 17ms 14 Oct 2023 762nd jakobkordez 🇸🇮 771 85 14ms 16 Nov 2023 762nd bizy-coder 771 85 14ms 24 Nov 2023 762nd bzijlema 🇳🇱 771 85 14ms 28 Nov 2023 762nd quimey 771 85 14ms 30 Nov 2023 762nd AlephSquirrel 771 85 16ms 21 Jan 2024 762nd mathisfun271 771 85 33ms 2 Feb 2024 762nd fourth-bit 771 85 14ms 14 Mar 2024 762nd Bulmenisaurus 771 85 13ms 1 Jul 2024 762nd jipsong 🇩🇪 771 85 14ms 25 Jul 2024 762nd davecame 771 85 14ms 18 Sep 2024 762nd ryyyn 🇺🇸 771 85 13ms 7 Jan 2025 762nd bricknellj 771 85 13ms 19 Jan 2025 762nd 4atj 771 85 14ms 30 Jun 2025 762nd dirckvdende 771 85 14ms 7 Jul 2025 762nd KapelMeister 771 85 17ms 30 Aug 2025 762nd ahmetdemirag 🇨🇾 771 85 31ms 1 Oct 2025 762nd CommandLeo 🇮🇹 771 85 13ms 25 days ago 762nd HPWiz 🇳🇿 771 85 13ms 22 days ago 762nd Languag3 771 85 13ms 13 days ago 762nd blaztoma 🇱🇹 771 85 13ms 10 days ago 762nd Lv0Sys 🇵🇱 771 85 14ms 10 days ago 796th MeWhenI 🇻🇦 769 49 47ms 25 Dec 2023 796th GrayJoKing 🇦🇺 769 49 41ms 26 Dec 2023 796th Natanaelel 🇸🇪 769 49 59ms 26 Dec 2023 796th DialFrost 🇸🇬 769 49 57ms 20 Dec 2024 800th KasperKivimaeki 🇫🇮 767 134 2,777ms 26 Oct 2025 First Prev 721–800 of 1,431 Next Last