---
title: "Timex Perpetual Calendar"
type: "article"
slug: "timex-perpetual-calendar"
url: "http://localhost/article/timex-perpetual-calendar/"
markdown_url: "http://localhost/article/timex-perpetual-calendar.md"
published_at: "2026-03-13T23:59:29+00:00"
modified_at: "2026-03-13T23:59:30+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "TS2068 BASIC perpetual calendar program that displays any month/year on screen with the correct day-of-week alignment. Navigation keys: 7 (forward one month), 6 (back one month), 8 (forward one year), 5 (back one year), space bar (re-display directions), 0 (COPY to printer). The algorithm handles leap years including century-year corrections. Author notes that lines 475-500…"
category:
  - name: "Timelinez"
    slug: "timelinez"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/timelinez/"
post_tag:
  - name: "BASIC (programming language)"
    slug: "basic-programming-language"
    taxonomy: "post_tag"
    url: "http://localhost/tag/basic-programming-language/"
  - name: "TS 2068"
    slug: "ts2068"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts2068/"
  - name: "Type-in program"
    slug: "type-in-program"
    taxonomy: "post_tag"
    url: "http://localhost/tag/type-in-program/"
model:
  - name: "Timex/Sinclair 2068"
    slug: "ts-2068"
    taxonomy: "model"
    url: "http://localhost/model/ts-2068/"
indiv:
  - name: "Jay Brockman"
    slug: "jay-brockman"
    taxonomy: "indiv"
    url: "http://localhost/indiv/jay-brockman/"
publication_r:
  id: 21571
  title: "Timelinez"
  type: "periodical"
  url: "http://localhost/periodical/timelinez/"
authors_r:
  - name: "Jay Brockman"
    slug: "jay-brockman"
    taxonomy: "indiv"
    url: "http://localhost/indiv/jay-brockman/"
volume: "2"
issue: "11"
issues_articles:
  - id: 38811
    title: "Timelinez v2 n11"
    type: "issue"
    url: "http://localhost/issue/timelinez-v2-n11/"
pages: "8"
pubdate: "November 1984"
archive_link: false
---

# Timex Perpetual Calendar

TS2068 BASIC perpetual calendar program that displays any month/year on screen with the correct day-of-week alignment. Navigation keys: 7 (forward one month), 6 (back one month), 8 (forward one year), 5 (back one year), space bar (re-display directions), 0 (COPY to printer). The algorithm handles leap years including century-year corrections. Author notes that lines 475-500 are missing from the published listing.