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Firdaria and Vimshottari dasha

Check out the period and subperiod rulers for the desired date.

Screenshots show the Ukrainian app interface. The English guide describes the same controls.

Screenshots of sample charts

What it is and why it matters

Periods show the sequence of planetary rulers in the chosen tradition: firdaria or Wimshottari dasha. This is a time frame for further analysis that can be compared with other techniques.

When to use it

  • To find the routers period for a certain date.
  • Look at the subperiods and transition between them.
Terms explained
Firdaria
A sequence of periods of the seven planets and two nodes, with a total cycle of 75 years. Day and night charts have different ruler sequences. Major planetary periods are divided into subperiods.
Dasha
A sequence of planetary rulership periods in the Vedic tradition. In Vimshottari, the initial sequence and remaining period balance depend on the Moon’s position.
Nakshatra and pada
A nakshatra is one of the 27 sectors of the sidereal zodiac. A pada is one quarter of a nakshatra. Both are used in Vedic tables and periods.
Ayanamsha
The angular offset between the tropical and selected sidereal zodiacs on the chart date. Different ayanamshas can produce different sidereal positions.

Where to find it

The table is “Period”.

How to use it

  1. Set the date of viewing; there are sections firdaria and Wimshotari dasha on the screen.
  2. For firdaria, check the day/night scheme, night chart option and year duration.
  3. For Dasha, choose Ayaamsha and the duration of the year. See Nakshatra Moon and the rest of the first Mahadash.
  4. Open available subperiods to move to Antarctica and Pratiantardasa.
Firdaria and Vimshottari dasha. Select the image to view it at full size.

Settings and options

Select an option to learn how it works and when to use it. The label beside its name shows whether it affects calculations, chart appearance or data.

For date / TodayData

The date for which the current period rolers are shown.

What changes
Changes the current allocation and outcome, does not restart birth. Outside the available sequence there is a message.
When to use it
Select the date of the event to compare; Today quickly returns the current status.
Link to this control
Night chart: Robert Hand / Robert ZollerCalculation

Two orders of firdaria for night birth.

What changes
Can change the sequence and limits of periods. For day chart the list is inactive because the agenda is used.
When to use it
Select the authored version in the source. The gray field of the day chart does not mean a malfunction.
Link to this control
Firdaria — Year: 365 days / tropicalCalculation

How many days is a symbolic year of firdaria.

What changes
365 days represents the corresponding ZET mode; a tropical year is approximately 365,24219 days. Over decades, boundaries accumulate the difference.
When to use it
To calculate calendar dates, specify the length of the year.
Link to this control
AyanamshaCalculation

The angular offset between the tropical zodiac and a particular sidereal zodiac. Different schools define different origins, so “sidereal” alone is not enough to reproduce a chart.

What changes
Available after selecting Sidereal. Changing the ayanamsha recalculates sidereal longitudes. Near boundaries, the sign, nakshatra, varga and initial dasha balance may change.
When to use it
Start with Lahiri unless your teaching method requires another ayanamsha. When comparing with a colleague, check the ayanamsha, date and node mode. The Vedic and Periods screens have their own ayanamsha selectors; check those separately.

Available options

Lahiri
Zorya Astro’s default, for reproducing Lahiri calculations.
Raman
B. V. Raman’s variant, with its own offset.
Krishnamurti
For methods that explicitly require this variant, including KP.
Fagan–Bradley
A separate standard in the Western sidereal tradition.
Yukteshwar
The Swiss Ephemeris definition for this school.
True Chitra
Spica is anchored at 0° Libra.
Galactic center at 0° Sagittarius
The coordinate origin is anchored to the Galactic Center.

The field is disabled in Tropical mode. A greyed-out field is expected because this offset is not applied in that mode.

Swiss Ephemeris: sidereal modes and ayanamsha ↗

Link to this control
Dasha — Year: 365.25 days / 360 days (savana) / tropicalCalculation

Time scale of the length of Vedic periods.

What changes
Change the calendar starts and ends. Savannah 360 days is noticeably different from solar options.
When to use it
Choose by school; comparing dates without the same length of year is incorrect.
Link to this control
Mahadasha / Antardasha / PratyantardashaAction

The Great Period, its subperiod and the next level of detail.

What changes
The line disclosure shows the boundaries inserted. In firdaria nodes have no subperiods in this implementation.
When to use it
Switch from the big cycle to the smaller; the accuracy of the short level depends on the weekend Moon and the rules of the year.
Link to this control

The result

The current rulers will be highlighted and the boundaries of periods will be shown.

Worked example

This is a teaching example; results for your chart may differ.

Situation
You want to check if the consultation date falls on a change in subperiod.
What to do
Set a date and reveal the appropriate period levels.
How to read the result
Boundaries will help to place the date in sequence; they themselves do not describe a specific event.

For professional practice

On one screen, you can compare two periodization systems and check the impact of the duration of the year, Ayaamsha and night scheme.

What to check for a precise comparison

Fix the system and its parameters. In Wimshotari, the initial balance is related to the exact position of the Moon.

Keep in mind

The dates depend on the duration of the year and the Ayeamsha. Nodes in firdaria have no subperiods.

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