Calculator Form
Example Data Table
| Input | Example Value | Meaning |
|---|---|---|
| Birth Date | 1992-08-18 | Date used as the starting point for the active balance. |
| Birth Time | 14:30 | Local birth time with timezone offset. |
| Moon Longitude | 43.5000° | Sidereal Moon position from a trusted chart source. |
| Calculation Level | Antardasha | Shows major periods and nested subperiods. |
Formula Used
Vimshottari Dasha uses a 120 year planetary cycle. The standard order is Ketu, Venus, Sun, Moon, Mars, Rahu, Jupiter, Saturn, and Mercury. Each nakshatra is 13 degrees and 20 minutes wide. The Moon nakshatra decides the starting dasha lord.
Remaining Mahadasha Balance = Planet Years × Remaining Nakshatra Fraction
Antardasha Duration = Mahadasha Years × Sub Lord Years ÷ 120
Pratyantar Duration = Antardasha Years × Fine Lord Years ÷ 120
How To Use This Calculator
Enter the birth date, birth time, timezone offset, and sidereal Moon longitude. Choose the dasha depth. Select the number of years you want to display. Press the calculate button. The result appears above the form. Use the export buttons when you need a file for records, reports, or further chart review.
Article: Understanding Vedic Dasha Timing
What This Calculator Does
A dasha calculator helps organize time periods used in Vedic astrology. This tool focuses on the Vimshottari system. It starts from the Moon nakshatra at birth. It then calculates the remaining balance of the first major period. After that, it builds the forward timeline. You can view Mahadasha, Antardasha, and Pratyantar periods. This gives a clean period map for study.
Why Moon Position Matters
The Moon is central in this method. Its sidereal longitude decides the birth nakshatra. Each nakshatra has a planetary lord. That lord becomes the active dasha lord at birth. The exact degree inside the nakshatra shows how much of that period has already passed. A Moon near the start of a nakshatra gives a larger balance. A Moon near the end gives a smaller balance.
How The Timeline Is Built
The Vimshottari cycle totals 120 years. The planetary order remains fixed. Each planet receives a set number of years. Ketu has seven years. Venus has twenty years. Sun has six years. Moon has ten years. Mars has seven years. Rahu has eighteen years. Jupiter has sixteen years. Saturn has nineteen years. Mercury has seventeen years. The calculator repeats this order after the active birth period ends.
Advanced Options
The level setting controls detail. Mahadasha gives the broadest view. Antardasha divides each major period into subperiods. Pratyantar adds a finer layer. This is useful for closer timing studies. The maximum row option protects large reports. The precision option controls decimal rounding. Latitude, longitude, and ayanamsa notes are included for documentation. They do not replace a full ephemeris.
Best Use
Use this calculator for structured learning and organized chart work. Always enter a reliable sidereal Moon longitude. A small longitude difference can change balance dates. Compare results with your preferred astrology software when accuracy is critical. Treat the output as a calculation aid. Interpretation still needs judgment, context, and careful chart reading.
FAQs
1. What is a dasha?
A dasha is a planetary time period used in Vedic astrology. It helps divide life events into symbolic timing cycles based on birth chart factors.
2. Which dasha system is used here?
This calculator uses the Vimshottari dasha system. It follows the fixed 120 year planetary cycle and starts from the Moon nakshatra.
3. Why do I need Moon longitude?
The Moon longitude identifies the birth nakshatra. The nakshatra lord becomes the starting dasha lord, and the Moon degree sets the balance.
4. Does this calculator compute the Moon position?
No. Enter the sidereal Moon longitude from a trusted chart source. This keeps the file simple and avoids external ephemeris requirements.
5. What is Mahadasha balance?
Mahadasha balance is the remaining part of the birth dasha. It depends on how much of the Moon nakshatra remains at birth.
6. What is Antardasha?
Antardasha is a subperiod inside a Mahadasha. It divides each major planetary period by the same Vimshottari proportional order.
7. What is Pratyantar dasha?
Pratyantar is a finer division inside Antardasha. It gives more detailed timing layers for careful astrological study and comparison.
8. Can I export the results?
Yes. Use the CSV button for spreadsheet work. Use the PDF button for a simple printable report with the calculated dasha timeline.