What you can read in your birth chart without a birth time

Pick Unknown, Approximate or Exact

You can read your planets' signs and the aspects that hold across your possible birth period. The Ascendant and houses stay unavailable until you have a time.

Select Unknown if you only know the birth date. Astriel then checks the local day at the birthplace you selected. Some planetary signs can stay the same all day, even though their degrees change.

Choose Approximate when you know part of the day. Pick a listed period, or choose Custom time range and enter the earliest and latest possible local times. Use a range your information supports. A narrower guess doesn't make the result more reliable.

Exact is for a specific local clock time. If a family memory gives only a rough hour, use Approximate until you can check a record. You don't need to invent a time to get a result.

• Calculate a chart with an unknown or approximate time

Read the signs that don't change first

Start with planets that keep the same sign throughout the checked period. Read their sign meanings and leave their exact degrees open. A stable sign means the calculation agrees across the period, not that your personality is fixed.

Say your Sun stays in Virgo all day. Read it through Virgo's themes of usefulness and careful improvement. That can show up as pride in a skill you keep sharpening, or frustration when work never feels finished.

A sign that changes during the period needs a conditional reading. This can happen to the Moon, and to the Sun near a sign entry. Keep the displayed alternatives until better time information settles the placement.

When your Moon shows 2 signs

A result with 2 Moon signs gives you 2 possible placements. Say it shows Gemini before 14:20 local time and Cancer after it. A confirmed birth between 09:00 and 11:00 picks Gemini. If the period crosses 14:20, both stay open.

A Gemini Moon processes feelings through conversation, while a Cancer Moon looks for familiarity and belonging. Read both while the time stays unknown. Feeling that one fits better doesn't settle which placement was calculated for your birth.

Use the date and time zone printed with the sign periods. Astriel normally shows local boundaries with their UTC offsets. If local display is unavailable, it labels the boundaries as UTC. Compare your birth record in the same time reference.

Time spent in each sign isn't the chance that you were born in it. Even a sign that covers most of the day can't be selected without supporting time information.

• Check your Moon sign with the Moon calculator

Why Astriel leaves out the Ascendant and houses

Astriel omits the Ascendant and houses for both approximate and unknown birth times. Both depend on the birth moment and location. Entering noon to fill the form would tie them to a time you don't have.

A chart wheel can imply a settled set of houses, so Astriel leaves the wheel out for uncertain-time results. The placements you do have stay readable in the tables.

Read aspect orbs as a range

With an uncertain time, Astriel reports a range of orbs instead of one value. An aspect is an angle between chart positions, and its orb is the distance from the exact angle.

Within limit throughout means the aspect stays inside its allowed orb across the checked period. Only part of the period means it crosses that limit. Read the second kind as a possibility that depends on when you were born.

Take a square with a 6-degree limit. An orb range of 2 to 4 degrees stays inside it. A range of 4 to 8 degrees crosses it, so you can't say the square was present at birth.

Read the aspects that stay within their limits first, then the conditional ones on their own. The closest possible orb doesn't prove an aspect was exact at birth.

• How Astriel handles time uncertainty and aspects

Recalculate when you find a better time

Check a birth record if one exists, or ask whoever holds it how the time was written. Confirm whether it uses a 12-hour or 24-hour clock. A remembered morning birth is less precise than a documented time.

Enter the corrected detail and calculate again. Compare what changed before you reuse an earlier reading. Keep anything unresolved labelled as unknown. The calculator still returns useful sign ranges without a complete clock time.