Solar vs. Lunar
The Tamil calendar is solar, tracking the sun's position through zodiac constellations.
The other five traditions use lunar calendars, based on moon phases, with intercalary months to align with seasons.
Cultural Distinctiveness
Each calendar preserves unique regional festivals and traditions: Tamil Pongal, Telugu Ugadi, Hindi Diwali market opens,
Kannada Ganesh Chaturthi, Gujarati Garba, and Rajasthani Teej. Separate calendars ensure cultural authenticity.
Diaspora Synchronization
All calendars are IST-synchronized, helping diaspora communities coordinate family rituals, video-conference ceremonies,
and business launches across time zones (USA, UK, Middle East, Australia).
Business & Auspiciousness
Each calendar identifies auspicious days for events. Merchants use these calendars for business launches, IPO timing,
and important decisions—especially post-Dussehra or Diwali in Hindu traditions.