Why Tithi Changes at Different Times During the Day

Learn why tithi can start or end at any time, why it is not tied to midnight, and how local panchang handles the change.

Tithi is based on the angular distance between the Sun and Moon, so it changes when that astronomical relationship crosses the next 12-degree interval.

Quick Comparison

Not a clock date

A tithi can begin in the morning, afternoon, evening, or night because it is not defined by midnight.

Moon speed varies

The Moon's apparent motion is not perfectly uniform, so tithi length can be shorter or longer than a civil day.

Local observance

Many vrats and festivals use sunrise, sunset, midday, or midnight rules to decide the observed date.

Why It Matters

Panchang timing is not just a date label. It depends on astronomical positions, local sunrise and sunset, timezone, and observance rules. That is why Tithi provides both explainers and location-aware panchang pages.

Check the Current Panchang

For today's local values, use Tithi Today, Panchang by City, or the full Tithi app.

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Panchang Glossary

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Methodology

How Tithi calculates panchang timing and observance dates.

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Shukla Paksha vs Krishna Paksha

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Abhijit Muhurat vs Choghadiya

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Frequently Asked Questions

What is the main idea behind Why Tithi Changes at Different Times?

Tithi is based on the angular distance between the Sun and Moon, so it changes when that astronomical relationship crosses the next 12-degree interval.