Why Hindu Festivals Have Different Dates Every Year

Learn why Hindu festival dates shift in the Gregorian calendar and how tithi, lunar months, and observance rules work.


Most Hindu festivals follow lunar or lunisolar rules, while the Gregorian calendar follows a solar civil date system.

Quick Comparison

Different calendar basis

A Gregorian date tracks the solar year, while many Hindu festivals track lunar tithi and lunar month.

Tithi decides the day

The festival may be tied to a tithi present at sunrise, sunset, noon, midnight, or another observance period.

Location matters

The same tithi can fall across different civil dates in different timezones, especially outside India.

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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Frequently Asked Questions

What is the main idea behind Why Hindu Festivals Have Different Dates?

Most Hindu festivals follow lunar or lunisolar rules, while the Gregorian calendar follows a solar civil date system.

Why does local panchang matter for this topic?

Local sunrise, sunset, timezone, and tithi transitions can change how a panchang value or observance is read for a specific city.

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