YOUR SKY ATLAS · A QUIETER PART OF YOUR SKY
Moon Sign Calculator
Find the Moon’s zodiac sign at birth and explore its emotional and instinctive themes.
How to Use This Calculator
- Select the birth date and enter the local time from a reliable record. Choose the unknown-time option if needed.
- Search for the birthplace and select the matching city, region, and country.
- Select “Find My Moon Sign.” Review the calculated details before reading the interpretation.
Understanding Your Moon Sign
The Moon moves much faster through the zodiac than the other planets, often changing signs during a birth date. Its placement is commonly read as a symbol of emotional needs, familiar habits, and the ways you seek comfort. A known time narrows the placement to a reliable degree.
Frequently Asked Questions
Why are there two possible Moon signs?
The Moon may cross a sign boundary on your local birth date. With an unknown time we show every possible sign, rather than choosing the noon sign as certain.
Is this my Moon phase?
No. A Moon sign is its zodiac longitude. A lunar phase describes its illuminated appearance relative to the Sun; phase calculations are outside this tool.
Calculation Method and Limitations
All tools share local Swiss Ephemeris calculations, tropical zodiac, and historical IANA time-zone conversion. Unknown times limit the precision of degrees, houses, angles, and aspects. Read the full method and limitations or review Source & License.