(This post is part of the Genuinely Approachable Sudoku (GAS) series.)
Every arrow bulb is off by one (either higher or lower) today. Can you still solve this Sudoku and not miss your target hat time?

PDF

or solve online (using SudokuPad)

Author/Opus: This is the 89th puzzle from Bill Murphy, part of the Genuinely Approachable Sudoku (GAS) team.

Rules: Standard Sudoku rules (insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region). Also, some arrow shapes are in the grid; the sum of the numbers along the path of each arrow must be one less than or one more than the number in the circled cell.�

GAS Time Standards (highlight to view): Two party hats (🎩🥳): 7:00; One party hat (🥳): 13:00. All other solvers earn a 🦕: Off By Omeisaurus ).

Thomas Hits the GAS (highlight to view): 2:18, with SudokuPad replay file shared as a download for now (requires loading via settings menu with improvements expected before people should use this regularly).

Solution: PDF; solving video with explanation to be added later from GAS team.

Note: Follow this link for other less common variations of Sudoku.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Daily GAS discussion post on the GMPuzzles Discord. Not a member of the Discord? Click this link for basic access.