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 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 801st sean-niemann 🇺🇸 813 238 5ms 29 May 2025 802nd Ripick 812 73 628ms 11 Jul 2024 803rd gnlow 🇰🇷 812 83 49ms 11 Feb 2025 803rd LarsFredrikHolstTry 812 83 49ms 28 Oct 2025 805th dokutan 812 85 206ms 4 Aug 2024 805th emgordon154 812 85 206ms 8 May 2025 807th AdrienHache 🇫🇷 812 133 50ms 17 Sep 2024 808th sisyphus-ppcg 🇦🇺 811 103 3ms 5 Oct 2023 808th dokutan 811 103 3ms 14 Sep 2024 810th KatieLG 🇬🇧 811 106 9ms 24 Apr 2023 811th dokutan 811 151 498ms 7 Nov 2025 812th Natanaelel 🇸🇪 810 54 4ms 25 Apr 2023 812th GolfingSuccess 🇬🇷 810 54 4ms 16 Oct 2024 812th edsrzf 🇳🇿 810 54 3ms 5 Nov 2025 815th sisyphus-ppcg 🇦🇺 810 100 13ms 21 Apr 2023 816th JayXon 🇺🇸 810 307 1,694ms 22 Apr 2024 817th uttumuttu 🇫🇮 809 101 16ms 22 Dec 2023 817th jameswmccarty 809 101 13ms 6 Mar 2025 819th emgordon154 808 139 6ms 28 Dec 2024 820th MeWhenI 🇻🇦 808 175 25ms 20 Dec 2023 821st lynn 808 206 32ms 11 Jul 2023 822nd dokutan 807 90 157ms 29 Jun 2024 823rd nwellnhof 🇩🇪 807 119 3ms 28 Apr 2023 824th canissimia 🇦🇶 807 458 45ms 8 Jan 2024 825th SirBogman 🇺🇸 806 102 3ms 23 Apr 2023 826th edsrzf 🇳🇿 806 193 40ms 1 Sep 2025 827th canissimia 🇦🇶 805 211 154ms 22 Aug 2023 828th plittlewood 804 73 403ms 16 Apr 2025 829th stefangimmillaro 804 155 703ms 19 Aug 2023 830th Shanethegamer 🇺🇸 803 104 3ms 16 Apr 2023 831st sean-niemann 🇺🇸 803 239 235ms 8 Jun 2025 831st lynn 803 239 223ms 6 Nov 2025 833rd Yewzir 🇧🇪 802 84 48ms 5 Nov 2023 833rd XenThe 🇬🇧 802 84 49ms 23 Jun 2025 835th xbxbxb007 802 133 279ms 10 Jan 2024 836th wasabi-avalanches 801 47 37ms 6 Apr 2024 836th emgordon154 801 47 59ms 17 Nov 2024 836th Lv0Sys 🇵🇱 801 47 55ms 13 days ago 839th MeWhenI 🇻🇦 801 74 393ms 27 Jul 2024 839th HumanoidCPU 801 74 351ms 27 Sep 2024 841st dokutan 801 93 423ms 10 Mar 2025 842nd Natanaelel 🇸🇪 801 102 14ms 18 Apr 2023 842nd VV1Git 801 102 14ms 19 Apr 2023 842nd KatieLG 🇬🇧 801 102 23ms 1 Jul 2023 842nd brochmann 🇸🇪 801 102 22ms 13 Aug 2023 842nd sbatllori 801 102 23ms 25 Aug 2023 842nd itsrenderman 801 102 22ms 30 Sep 2023 842nd pde-bakk 🇳🇱 801 102 22ms 23 Oct 2023 842nd ktanaka 801 102 13ms 11 Jan 2024 842nd Krtecik 801 102 22ms 9 Feb 2024 842nd qwjhvbxi 801 102 22ms 9 Feb 2024 842nd pkilar43 801 102 22ms 9 Feb 2024 842nd bwenstar 801 102 22ms 21 Feb 2024 842nd sultan 801 102 22ms 26 Feb 2024 842nd Trusly 801 102 21ms 27 Feb 2024 842nd NoneTheFewer 801 102 22ms 17 May 2024 842nd FranklinJiaChen 801 102 23ms 1 Jul 2024 842nd lchaumartin 801 102 22ms 22 Aug 2024 842nd alemelis 801 102 22ms 13 Sep 2024 842nd ComputerKWasTaken 🇺🇸 801 102 22ms 24 Sep 2024 842nd xyangst 801 102 13ms 3 Oct 2024 842nd JunkIce 801 102 23ms 4 Oct 2024 842nd wh3n3v3r 🇨🇿 801 102 22ms 20 Nov 2024 842nd codewrite 🇬🇧 801 102 21ms 19 Apr 2025 842nd kistlerf 🇨🇭 801 102 27ms 14 May 2025 842nd ffelixm 801 102 21ms 1 Jun 2025 842nd Andrey2001 801 102 38ms 25 days ago 868th Yewzir 🇧🇪 801 153 470ms 4 Jul 2023 869th lifthrasiir 🇰🇷 801 264 34ms 19 Dec 2024 870th greenstuartj 800 20 291ms 4 Jan 2024 871st stefangimmillaro 800 240 255ms 16 Nov 2023 872nd primo-ppcg 🇹🇭 800 308 15ms 2 Aug 2023 873rd DialFrost 🇸🇬 799 91 120ms 3 Jun 2025 874th GolfingSuccess 🇬🇷 799 336 489ms 4 Feb 2025 875th kg583 🇺🇸 798 195 40ms 24 Jun 2025 876th emgordon154 796 154 559ms 25 May 2025 877th ovs-code 🇩🇪 796 337 478ms 4 Feb 2025 878th kkoenig 795 55 3ms 23 Jan 2024 879th ShepardToTheStars 794 74 370ms 4 Jan 2024 879th KatieLG 🇬🇧 794 74 380ms 30 Apr 2024 First Prev 801–880 of 1,437 Next Last