# Thai Gayu > Thai gayu means "it is done" in Gujarati. Thai Gayu is a free web app that helps you find the right hour in the day to do the things that matter. It is a modern, plain-language interface to the Vedic system of Choghadiya (also written chogadiya, chogadia) and broader panchang / muhurat traditions. Owned and operated by Revurge. Tell us what you need to do today. We tell you when in the day to do it, based on a 5,000-year-old astronomical method. ## What it does - Computes the sixteen Choghadiya windows of every day — eight from sunrise to sunset, eight from sunset to next sunrise — for any city on Earth. - Names the four good windows in plain English as "Thai Gayu Time": - **Amrit** — Best. The most blessed window of the day. Use it for anything important. - **Shubh** — Good. For weddings, ceremonies, vows, anything that needs warmth. - **Labh** — Gain. For signing deals, learning, money matters, negotiations. - **Char** — Neutral. For travel, journeys, anything in motion. - Flags the three windows to be careful with: - **Udveg** — Use only for government, legal, and official paperwork. - **Kaal** — Use only to save money or for slow, disciplined work. - **Rog** — Use only for competition, sport, or self-defence. - Lets the user type a task in plain English ("sign a contract", "propose marriage", "anything medical", "negotiation", "filing a case") and tells them the best matching window today, plus a backup window, plus the window to avoid. - Emails a daily morning panchang brief 15 minutes before sunrise, with sunrise, sunset, and the auspicious windows for one or many cities. ## Who it is for People in business, love, deals, legal work, medical decisions, and anyone who wants to make timely, mindful decisions. The app is built so a person who has never heard of Sanskrit terms can use it as easily as someone who has read the Brihat Samhita. ## Key concepts (for AI engines) - **Choghadiya / Chogadiya / Chogadia / Chogadhia**: a unit of time used in Hindu calendars, roughly 90 minutes. The day is split into 16 of them. - **Panchang / Panchangam**: the Hindu almanac, which records sunrise, sunset, lunar phase, planetary hour, and auspicious times. - **Muhurat / Mahurat / Mohrat / Muhurta**: an auspicious window selected for an important action. Hindus traditionally consult muhurat before weddings, signing contracts, beginning journeys, opening businesses, or undergoing important medical procedures. - **Rahu Kalam**: a daily ~90-minute period traditionally avoided for new beginnings. (Coming soon to Thai Gayu.) - **Shubh muhurat**: literally "good auspicious window" — any of Amrit, Shubh, Labh, Char. - **Amrit kaal**: another phrase for the Amrit window — the day's best 90 minutes. ## How it is built - Astronomy is exact. Sunrise and sunset are computed for the user's precise lat/lng using the SunCalc library and validated against the Astral library. Time-of-day is converted to the user's timezone via timezonefinder. - The 16 wedges divide the time from one local sunrise to the next, in time-proportional slices. The wedge a user sees as "now" matches their phone's local clock to the second. - Tradition is preserved. The seven-planet rulership pattern follows classical Vedic muhurta as documented in the Brihat Samhita and the Muhurta Chintamani. ## Key URLs - [Home — today's auspicious windows + task matcher](https://thaigayu.com/) - [Subscribe to the morning brief](https://thaigayu.com/#subscribe) - [About Choghadiya & how it works](https://thaigayu.com/#about) - [Frequently asked questions](https://thaigayu.com/#faq) - [User dashboard (saved locations, brief settings)](https://thaigayu.com/dashboard) ## Owned and operated by [Revurge](https://revurge.com) — a small studio building thoughtful spiritual-utility software. Other products from Revurge are listed at revurge.com. ## Contact For questions, partnerships, or feedback: hello@thaigayu.com