About the resource
About Zodiac Calendar
ZodiacCalendar.com is a plain-language reference for zodiac dates, signs, birth-chart structure and the astronomy behind common zodiac questions. It is not a daily-horoscope feed.
Who publishes the site?
Zodiac Calendar is written and edited by Tanya Francis. The site doesn’t claim astrology credentials for anyone.
Who edits the site?
Tanya Francis is from Guelph, Ontario, and she's a Sagittarius. She got interested in astrology after her father passed away in 2007, at first as a way to pass the time and cope with her grief. Over the 19 years since, it has grown into a passion. Today she edits Zodiac Calendar.
Pages carry a "By Tanya Francis · Updated" line with the date the content last changed in a way that matters.
What we cover
- Zodiac sign dates and sign structure
- Elements, modalities, planets, houses and aspects
- Birth-chart basics and reading order
- Tropical, sidereal and astronomical zodiac distinctions
- Calendar and astronomy context needed to explain common zodiac questions
How we separate different kinds of claims
Swipe the table sideways →
| Type of claim | How we present it | Typical source |
|---|---|---|
| Astronomy | As measurable scientific information | NASA, IAU and other scientific institutions |
| Calendar or coordinate fact | As a defined system, with the system named | Primary/authoritative technical references |
| History or cultural tradition | With time/place/tradition context | Museums, cultural institutions and established references |
| Astrological meaning | As traditional or interpretive symbolism | Astrological tradition—not presented as scientific proof |
How pages are researched
For factual claims, we prefer primary or authoritative sources and link them where they are useful to the reader. Our source method explains the order we use. The Research Library collects short source notes for claims that benefit from extra context.
How pages are reviewed
Pages are checked for clarity, internal consistency, source quality and whether they clearly distinguish fact from interpretation. A page's update date changes when its content changes in a way that matters, not every time the site is redeployed.
Corrections
If we get a fact wrong in a way that matters, we fix it instead of arguing for it. The Corrections Policy explains what we change and when a correction note is appropriate.
What we do not claim
Zodiac Calendar does not present astrological symbolism as scientifically established causation, diagnosis or personality measurement. Astrology is explained as a cultural and interpretive tradition; astronomy is presented separately as science.