Can you make a kundli without an exact birth time?
Yes, but with limits. Some parts of a kundli need the exact time and some do not.
Why birth time matters
The ascendant (Lagna), the sign rising on the eastern horizon at birth, changes about every two hours. The ascendant decides the 12 houses of your chart, so a different time can mean a different Lagna and a different reading of career, marriage and health.
Finer charts such as the Navamsha (D9) change even faster: the D9 sign changes about every 13 minutes.
What still works without an exact time
- Planet positions in signs. The slow planets (Saturn, Jupiter, Rahu, Ketu) barely move in a day, and most others stay in the same sign through the day.
- Your Moon sign and nakshatra. The Moon moves about 13 degrees a day and changes sign roughly every 2.25 days, so for most people the Moon sign is the same all day. Only if you were born near a sign boundary can it differ.
- The Vimshottari dasha sequence. It starts from the Moon's nakshatra. The Moon's exact position changes about half a degree an hour, so dasha dates can shift by some weeks or months without an exact time, but the order of periods is right.
- Sade Sati, Dhaiya and Saturn and Jupiter transits. These are counted from your Moon sign and need no birth time.
- Numerology and baby names. These use date of birth or nakshatra and do not depend on the ascendant.
What becomes uncertain
- The ascendant and therefore the houses
- Exact dasha dates (they can be off, depending on the Moon's position)
- House-based readings, divisional charts and the exact timing of events
The Moon chart (Chandra kundli)
When the time is unknown, a standard approach is to use the Moon sign as the first house. This is called a Chandra kundli. It gives a consistent chart that is useful for the areas above. A good report says clearly which parts are less reliable instead of presenting everything as certain.
If you only know it roughly
If you know the time is "morning" or "around 4 pm", the number of possible ascendants is small. A report can list them and tell you what changes between them. Birth time rectification is the process of narrowing it down using known life events, and you can use the report's section on your past to check which ascendant fits.
How we handle it
On our order form you choose how well you know the time, and the price reflects how much of the chart can be read precisely: ₹99 for an exact time, ₹79 for an approximate time (possible ascendants listed) and ₹49 for an unknown time (a full Moon-chart report). The report always says which parts are affected.
Astrology is a traditional belief system. This guide explains how the system works and is for information and self-reflection, not a prediction or advice on health, money or law.
By AT Astro · Updated 22 October 2026 · All guides