Panchanga & Vedic Calendar
Panchanga is a local-time almanac, not merely a list of good or bad dates. This collection explores tithi, the lunar longitude difference; nakshatra, the Moon's sidereal sector; sunrise-based weekdays; and how local sunrise changes traditional intervals.
Start with the five classical limbs, then follow a worked time calculation. Each guide distinguishes astronomical transitions from calendar customs. For a real day and city, use the Panchanga tool rather than copying examples for another location.
Guides and lessons
What Is a Tithi? How a Lunar Day Is Calculated
A worked 12-degree example, the difference from a civil day, and why the end time changes from one date to another.
Read guideGuideRahu Kalam: Meaning, Weekday Rule and Local Time Example
The eight-part daylight method, weekday positions, a numerical example, and why one universal Rahu Kalam time is wrong.
Read guideGuideWhy Panchanga Times Differ Between Cities and Time Zones
A practical guide to astronomical instants, sunrise rules, DST, and avoiding incorrect copy-and-paste calendars.
Read guideGuideToday's Nakshatra: Find the Lunar Mansion and Its Transition
A city-aware approach to the Moon's 27 sidereal sectors, exact transitions and how this differs from Moon sign.
Read guideGuideWhy a Traditional Panchanga Day Can Begin at Sunrise
Civil midnight versus sunrise-based observances, repeated or skipped sunrise tithis, and a worked timeline.
Read guideGuideThe Five Parts of Panchanga: Tithi, Vara, Nakshatra, Yoga and Karana
Learn what each Panchanga element measures, why transitions differ from midnight, and how to use a calendar for your own city.
Read guide