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 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 721st Lydxn 🇨🇦 835 115 11ms 17 Apr 2023 722nd sean-niemann 🇺🇸 835 161 4ms 21 Apr 2025 722nd GolfingSuccess 🇬🇷 835 161 5ms 27 days ago 724th Shanethegamer 🇺🇸 834 42 77ms 25 Mar 2024 724th MeWhenI 🇻🇦 834 42 71ms 2 Aug 2024 726th ssbhatt4321 834 98 13ms 11 Jun 2023 726th tayadev 834 98 13ms 18 Nov 2023 726th hiichbindermax 834 98 13ms 27 Jul 2024 726th jatloe 834 98 15ms 23 Oct 2024 726th denisfouchard 834 98 14ms 23 Aug 2025 726th vhoulbreque 🇫🇷 834 98 27ms 14 days ago 732nd edsrzf 🇳🇿 834 165 118ms 19 days ago 732nd DialFrost 🇸🇬 834 165 94ms 16 days ago 732nd emgordon154 834 165 100ms 14 days ago 732nd snoozingnewt 🇨🇦 834 165 96ms 12 days ago 736th 0xjac 🇨🇭 833 128 268ms 11 Jun 2025 737th PowershellKnut 🇳🇴 832 81 50ms 7 Jan 2024 738th emplv 🇱🇻 831 83 201ms 28 Mar 2025 739th Steffan153 🇫🇮 830 70 9ms 12 Dec 2023 739th Yewzir 🇧🇪 830 70 9ms 14 Dec 2023 739th emgordon154 830 70 10ms 6 Dec 2024 739th sean-niemann 🇺🇸 830 70 8ms 20 Apr 2025 743rd zacjl 830 99 18ms 30 Jul 2025 744th Steffan153 🇫🇮 830 162 5ms 29 Jan 2024 745th GolfingSuccess 🇬🇷 829 124 463ms 30 Dec 2024 746th ovs-code 🇩🇪 828 146 399ms 10 May 2024 747th JarrodCope 827 71 371ms 19 Apr 2024 748th albanian-laundromat 827 90 420ms 4 Aug 2025 749th dvargas46 🇺🇸 827 98 115ms 18 Apr 2023 750th jipsong 🇩🇪 827 101 3ms 9 Feb 2025 750th snoozingnewt 🇨🇦 827 101 4ms 6 days ago 752nd sean-niemann 🇺🇸 826 65 4,116ms 24 Oct 2024 752nd jipsong 🇩🇪 826 65 2,776ms 9 Jun 2025 754th Yewzir 🇧🇪 826 116 128ms 30 Apr 2023 755th inventshah 825 53 4ms 16 Apr 2023 756th aksyristos 825 99 14ms 17 Apr 2023 756th TaserTheFox 🇺🇸 825 99 20ms 17 Apr 2023 756th ehulinsky 🇺🇸 825 99 17ms 10 May 2023 756th minhtrancccp 825 99 24ms 1 Nov 2023 756th roguh 🇬🇹 825 99 14ms 22 Jan 2024 756th namelessiw 825 99 14ms 21 Feb 2024 756th SB-945 825 99 14ms 5 Mar 2024 756th jtaxen 825 99 18ms 22 Mar 2024 756th christensendaniel 825 99 14ms 14 May 2024 756th abhishekg999 825 99 32ms 22 Sep 2024 756th moustave 825 99 14ms 7 Jan 2025 756th sciencejiho 825 99 13ms 10 Feb 2025 756th 0dyse 825 99 18ms 15 Apr 2025 756th Voltrifrodec 🇸🇰 825 99 14ms 27 Apr 2025 756th Flekay 🇩🇪 825 99 15ms 18 Jun 2025 756th CoolBvll 825 99 19ms 10 Jul 2025 756th michelebastione 🇮🇹 825 99 14ms 6 Aug 2025 756th jacekwladzinski 825 99 14ms 4 Oct 2025 774th xsot 🇸🇬 824 54 8ms 28 Sep 2024 775th lyphyser 824 131 53ms 10 Feb 2025 776th Steffan153 🇫🇮 824 202 31ms 18 Apr 2023 777th primo-ppcg 🇹🇭 824 206 43ms 26 Apr 2025 777th marshallward 🇺🇸 824 206 41ms 7 May 2025 779th GrayJoKing 🇦🇺 823 138 17ms 3 May 2023 780th KrausRaus 🇺🇸 822 53 7ms 21 Apr 2023 780th Shanethegamer 🇺🇸 822 53 5ms 2 Jul 2023 780th Kokusui 🇯🇵 822 53 5ms 4 Oct 2024 780th Salutations45 822 53 5ms 21 Nov 2024 784th Bubbler-4 822 85 314ms 17 Apr 2023 785th MeWhenI 🇻🇦 820 207 41ms 29 Apr 2025 786th mtirado1 819 102 3ms 17 Apr 2023 786th NickTheEASDude 🇺🇸 819 102 3ms 27 Mar 2024 788th fuzzylojik-golf 🇺🇸 819 105 9ms 14 Oct 2023 789th m42km 818 91 382ms 4 Feb 2024 790th emgordon154 818 328 548ms 6 Nov 2025 791st XioR112 🇵🇱 817 100 20ms 5 Sep 2023 791st OCNeve 817 100 17ms 18 Jun 2024 791st StinkyMilo 817 100 13ms 13 May 2025 794th Shanethegamer 🇺🇸 816 89 132ms 24 May 2025 794th sean-niemann 🇺🇸 816 89 176ms 25 May 2025 796th Yewzir 🇧🇪 816 126 417ms 6 May 2024 797th GolfingSuccess 🇬🇷 816 202 747ms 24 days ago 798th GrayJoKing 🇦🇺 814 221 19ms 31 Jul 2023 799th sean-niemann 🇺🇸 813 238 5ms 29 May 2025 800th Ripick 812 73 628ms 11 Jul 2024 First Prev 721–800 of 1,435 Next Last