Annual Tithi Calculator Portable May 2026

Since many rituals depend on local sunrise, your calculator must allow manual entry of coordinates or select from a global city database.

Some advanced models also include the daily Nakshatra and Karana (half-tithi) for Muhurta (electional astrology). annual tithi calculator portable

Arvind spent eighteen months on it. He quit his job. He sourced a low-power, e-ink display from a discontinued e-reader factory in Shenzhen. He programmed an ATmega328P microcontroller—the same heart as an Arduino—with a stripped-down version of the Swiss Ephemeris. No Wi-Fi. No Bluetooth. No touchscreen. Just raw, precision astronomy compressed into 512 kilobytes of flash memory. Since many rituals depend on local sunrise, your

The casing was the hardest part. He wanted something that felt like a priest’s tool, not a gadget. He found a local woodworker who carved enclosures from neem wood, sanded smooth and coated with beeswax. On the front, a simple 4-line e-ink screen. Below it, five tactile buttons: Year+, Year-, Location, Tithi, and Calculate. He programmed a special “Annual Export” feature

The logic was brutal. For any given Gregorian date (say, April 19, 2026), the device would:

He programmed a special “Annual Export” feature. Press and hold the Calculate button for 3 seconds, and the device would write a 10-year tithi calendar onto a tiny, removable SD card—text only, no formatting, so that even a 1990s printer could print it.

You should be able to generate a PDF or CSV of the entire year’s tithi table and print it for your home altar or community center.