The Calendar hole will go live in approximately 9 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 394th lynn 903 43 4ms 21 Dec 2024 394th sean-niemann 🇺🇸 903 43 4ms 11 Jan 2025 394th edsrzf 🇳🇿 903 43 5ms 21 Jul 2025 404th Adix-null 🇱🇹 903 65 390ms 16 May 2023 404th MeWhenI 🇻🇦 903 65 363ms 26 Jul 2023 404th kkoenig 903 65 396ms 28 Dec 2023 404th Shanethegamer 🇺🇸 903 65 402ms 26 Mar 2024 404th xyangst 903 65 387ms 3 Oct 2024 404th dokutan 903 65 418ms 14 Oct 2024 404th petr-svestka 903 65 415ms 4 Nov 2024 404th voytxt 🇨🇿 903 65 422ms 4 Nov 2024 404th plcc0 903 65 343ms 4 Mar 2025 404th arcpolaris 903 65 361ms 23 Mar 2025 404th snoozingnewt 🇨🇦 903 65 378ms 12 Nov 2025 404th DialFrost 🇸🇬 903 65 362ms 8 days ago 416th Lydxn 🇨🇦 902 49 1,140ms 6 May 2023 416th stefangimmillaro 902 49 1,121ms 6 Aug 2023 416th pardouin 🇫🇷 902 49 1,124ms 10 Apr 2025 419th Lydxn 🇨🇦 899 66 349ms 2 Aug 2023 419th sean-niemann 🇺🇸 899 66 375ms 2 Aug 2023 419th JayXon 🇺🇸 899 66 362ms 2 Aug 2023 419th m-tkach 🇺🇦 899 66 357ms 2 Aug 2023 419th Steffan153 🇫🇮 899 66 350ms 2 Aug 2023 419th pardouin 🇫🇷 899 66 370ms 9 Oct 2024 419th edsrzf 🇳🇿 899 66 338ms 10 Jun 2025 419th DialFrost 🇸🇬 899 66 328ms 8 days ago 419th snoozingnewt 🇨🇦 899 66 334ms 7 days ago 428th Ashikpaul 🇮🇳 898 75 47ms 13 Oct 2024 428th 823126 898 75 48ms 13 Nov 2024 428th n3uromanc3r 898 75 48ms 28 Nov 2024 428th Yax42 🇫🇷 898 75 49ms 5 Sep 2025 432nd scpchicken 🇵🇼 898 91 36ms 16 Apr 2023 432nd anter69 🇭🇺 898 91 24ms 17 Apr 2023 432nd stefangimmillaro 898 91 21ms 20 Apr 2023 432nd Alex-x90 🇺🇸 898 91 20ms 15 May 2023 432nd AlexanderFair 898 91 20ms 11 Jul 2023 432nd orthoplex 🇨🇽 898 91 20ms 3 Oct 2023 432nd Ralac07 🇦🇺 898 91 21ms 11 Jun 2024 432nd EnTerr 898 91 22ms 8 Sep 2024 432nd Pyroan 898 91 20ms 16 Apr 2025 432nd bknower 898 91 21ms 27 Jun 2025 432nd luuumine 🇫🇷 898 91 23ms 3 Nov 2025 443rd JayXon 🇺🇸 898 93 2ms 3 May 2023 443rd jacobly0 🇺🇸 898 93 3ms 29 Aug 2023 443rd adriweb 🇫🇷 898 93 2ms 9 Sep 2023 443rd Waffle3z 898 93 2ms 11 Sep 2023 443rd GoateSo 898 93 2ms 14 Sep 2023 443rd microcanary 898 93 3ms 14 Sep 2023 443rd FlyingPenguin223 898 93 3ms 26 Nov 2024 443rd kamihitoe 898 93 3ms 15 Jan 2025 443rd edsrzf 🇳🇿 898 93 3ms 26 Jul 2025 443rd GrayJoKing 🇦🇺 898 93 2ms 28 Jul 2025 453rd inventshah 897 83 349ms 20 Jan 2024 453rd edsrzf 🇳🇿 897 83 388ms 23 Sep 2024 453rd commandblockguy 🇺🇸 897 83 360ms 1 Sep 2025 456th GolfingSuccess 🇬🇷 896 95 2ms 30 Dec 2024 457th edsrzf 🇳🇿 895 43 773ms 28 Aug 2025 457th sean-niemann 🇺🇸 895 43 662ms 30 Aug 2025 457th DialFrost 🇸🇬 895 43 698ms 6 Sep 2025 457th jipsong 🇩🇪 895 43 697ms 26 Sep 2025 457th xsot 🇸🇬 895 43 716ms 15 Nov 2025 462nd edsrzf 🇳🇿 895 60 4,293ms 1 Sep 2025 462nd pardouin 🇫🇷 895 60 3,936ms 1 Sep 2025 462nd JayXon 🇺🇸 895 60 3,787ms 2 Sep 2025 462nd DialFrost 🇸🇬 895 60 4,194ms 6 Sep 2025 462nd snoozingnewt 🇨🇦 895 60 2,605ms 7 days ago 467th inventshah 894 115 413ms 16 Apr 2023 467th nwellnhof 🇩🇪 894 115 400ms 18 Apr 2023 467th JayXon 🇺🇸 894 115 460ms 19 Apr 2023 467th Alex-x90 🇺🇸 894 115 427ms 14 May 2023 467th Lydxn 🇨🇦 894 115 409ms 26 May 2023 467th ovs-code 🇩🇪 894 115 477ms 24 Aug 2023 467th sean-niemann 🇺🇸 894 115 460ms 19 Nov 2023 467th Steffan153 🇫🇮 894 115 390ms 10 Aug 2024 475th rzv-me 890 49 5ms 5 Oct 2024 476th ovs-code 🇩🇪 890 50 8ms 27 Sep 2024 476th GrayJoKing 🇦🇺 890 50 8ms 30 Sep 2024 476th sisyphus-ppcg 🇦🇺 890 50 9ms 1 Oct 2024 476th DialFrost 🇸🇬 890 50 8ms 23 Dec 2024 476th edsrzf 🇳🇿 890 50 8ms 7 Nov 2025 First Prev 401–480 of 1,437 Next Last