Sources & methodology

Calendaro aggregates and computes information from public sources. We strive for accuracy, but errors or delays may occur.

Public holidays

Public holidays are based on legislation and public sources (e.g., legislative portals / announcements). For important decisions, always verify official sources.

Orthodox calendar

Feasts and fasting periods follow publicly available ecclesiastical calendars. For local differences, use your parish/diocese calendar.

Sunrise / sunset

We use NOAA-like astronomical formulas (approximation). Results may differ by a few minutes depending on altitude, terrain, refraction and the exact zenith definition.

Solunar (approx.)

The solunar is approximate and intended for entertainment/planning. We do not guarantee fishing outcomes.