Can I get my birth chart without birth time?

What needs the time

Saju, the Korean Four Pillars method, builds one pillar each from the year, month, day, and hour of birth. The hour pillar cannot exist without an hour.

Western astrology has the same gap. The rising sign is the zodiac sign on the eastern horizon at the moment of birth, so it changes about every two hours and cannot be worked out from a date.

What still works from the date

The year, month, and day pillars come from the birth date alone. So do the Sun sign and the life path number in numerology. A missing time leaves all of these intact.

Crossfate drops the hour pillar and the rising sign when you leave the time blank, builds the result from the rest, and says on screen what was left out.

Should you guess a time?

A guessed time can quietly change the result. An hour pillar spans two hours, so being one slot off gives a different pillar. It is safer to leave the time out. If a parent remembers it or a birth record turns up, add it later and read the result again.