Holiday 20
Memorial Day
Last Monday of May
~1 min read · 194 words
When it falls
Last Monday of May — computed via Nth-weekday-of-month.
Worked dates:
| Year | Date |
|---|---|
| 2026 | May 25 |
| 2030 | May 27 |
| 2050 | May 30 |
What it shows on the island
From holidays.yml:
Half-mast American flag with poppies.
Sprite
Dimensions: 32 × 32 pixels. Anchored at island position (404, 284).
Added by this port via the holiday expansion. existing_sprite: null. The visual is a 32x32 transparent emblem authored by an AI sub-agent in the shared 16-color CLUT defined in scripts/holidays_art_lib.py. It overlays the island corner during the holiday’s window rather than reskinning the scene.
Palette
#1A2A5E, #C8102E, #FFFFFF
Three-color hint from holidays.yml. This is a guide for the codegen step and the emblem authoring pass; the actual emblem samples from the shared 16-color CLUT, and the original Sierra sprites use the original game palette directly.
Algorithm
Computed by holidayNthWeekdayOfMonth(n, weekday, month, year), which calls holidayDayOfWeek (Tomohiko Sakamoto / Zeller). See Date-algorithm core.
Emblem
This holiday has an emblem on the shared sheet at cell 16, pixel offset (0, 64). View the packed sheet on GitHub: docs/ps1/holidays-emblems/holiday-emblems-sheet.png. Full index: Emblem gallery.
Source
- Row in
holidays.yml(search forid: 20orshort_name: "MEMORIAL"). - Generated row in
src/holidays_table.c.