Author – Anit Kumar Tarafdar

About the Author

I’m Anit Kumar Tarafdar, the founder and lead developer of ethiopiancalendars.com. I built this website to make the Ethiopian (Ge’ez) calendar practical and trustworthy for everyday use: seeing today’s Ethiopian date, converting dates between Ethiopian and Gregorian calendars, and exploring holidays with clear, dual-label presentation. My approach emphasizes transparency—every important constant and formula used on this site is published on the Methodology page so you can reproduce the calculations yourself.

The site relies on stable, integer-based Julian Day Number (JDN) conversions, the Ethiopic epoch constant 1723856, and the well-known Ethiopian leap-year rule (y % 4 = 3). Holidays are mapped with explicit logic: for each Ethiopian year, we determine the Gregorian year containing Meskerem 1 (the “start” year). Gregorian holidays in September–December belong to that GC start year; those in January–August belong to the following GC year. For observances that shift in Gregorian leap years (e.g., Meskel, Timket), a dedicated “gregorian-leap” rule adjusts the day automatically.

Role in This Website

• Calendar logic: Implement ET↔GC conversion using JDN, Ethiopic epoch, and a 1461-day 4-year cycle.
• Holiday mapping: Maintain fixed-date observances with leap-aware shifts and dual ET/GC labeling.
• Rendering & UX: Build a Monday-first, accessible 6×7 month grid with Geʽez numerals, clear state (today/holiday), and keyboard navigation.
• Performance: Keep the site fast and stable with predictable layout, minimal blocking assets, and integer-only date math.
• SEO & trust: Publish methodology, add structured data, write clear copy, and keep titles/canonicals clean.
• Accessibility: Use readable contrast, descriptive alt text, and ARIA where useful; aim for keyboard-friendly controls.
• Operations: Handle hosting, analytics, content updates, feedback, and corrections.

Experience Highlights

• Full-stack web development with HTML, CSS, JavaScript, PHP, Python (CGI), and WordPress.
• Search engine optimization and digital publishing for calendar and utility sites.
• Calendar data handling: JDN conversions, leap-year logic, and dual-calendar labeling.
• API integration and lightweight data pipelines for static sites.

Editorial Standards & Corrections

I write and maintain the content with an emphasis on clarity and verifiability. Assumptions and limitations (date-only math, proleptic Gregorian use for consistency, and not yet including movable feasts like Fasika) are listed on the Methodology page. If you notice any issue or have a suggestion, please email [email protected]. Confirmed fixes are applied promptly, and relevant pages are updated with a “last reviewed” date.

Why Trust ethiopiancalendars.com

ethiopiancalendars.com is built to be transparent, reproducible, and practical. We publish the math behind our results, label assumptions clearly, and invite verification and feedback.

Experience

• Designed and implemented by Anit Kumar Tarafdar (founder & lead developer), with hands-on work in calendar math and UI.
• Real-world testing across anchors (Meskerem 1, Genna, Timket) and edge cases (Pagume 5/6, GC leap shifts).

Expertise

• Integer-only Julian Day Number (JDN) conversions for deterministic outputs.
• Documented Ethiopic epoch constant (1723856) and Ethiopian leap-year rule (y % 4 = 3).
• Dual ET/GC labeling and Monday-first grid with clear Geʽez numerals.

Authoritativeness

• Complete 13-month overview (Meskerem → Pagume) with typical GC spans and accuracy notes.
• Holiday mapping rules (Sep–Dec in GC start year; Jan–Aug next GC year) with leap-aware shifts (Meskel, Timket).
• Full Methodology with constants, formulas, and test vectors.

Trustworthiness

• Date-only scope (no time zones or times) documented openly, including edge-case notes.
• Minimal data collection; plain language disclosures. See our Privacy Policy.
• Clear contact channel for corrections: Contact or [email protected].