There is no such thing as being on the cusp. You can be born near the cusp, but you are always one sign or another.
How does this work? The zodiac is divided into twelve signs and these are each 30 degrees long. The Sun, and indeed all the planets appear to move through these signs at varying rates. The Sun takes approximately 30 days to travel through one sign. Sometimes it takes a little more, sometimes a little less.
Most astrology columns will give the reader the information that the Sun is in the sign of Cancer from 22nd July until 21st August. For those born on the 20th, 21st, and 22nd of each month that is actually confusing. In any given year the Sun might move into Cancer on any of those days.
Prince William is a good example. He was born on June 21st, 1983 at 9:03 p.m. If you look at most Sun Sign columns this will make him a Gemini. But, in fact, in 1983 the Sun had already moved into the sign of Cancer during the early evening of the 21st and Prince William is very much a Cancer, just like his mother, Princess Diana. Now, remember, this might not be the case in any other year. Each year is different.
Why is he “very much” a Cancer? Because the first few degrees of any sign are the most powerful. People born during the first hours after the Sun changes signs are often very strong examples of their sign.
So what can you do if you are born on one of the cusp dates? How can you find out what sign you are? The best way is to find your birth time and then go to an astrological websites and enter your information. You will immediately see a chart that tells you where your Sun is.
If you don’t have a birth time it is probably safe to assume that you are the next sign along. Why? Because the sign the Sun is entering is usually more influential than the sign the Sun is leaving.
How can you find out your birth time? Most modern birth certificates now include it. If yours does not then you can look for your baby book — a lot of mum’s kept these in the 50s and 60s or if they are still alive, you can ask your parents. Don’t forget aunties and uncles! They were often the ones who looked after other siblings whilst mum was having a baby and they will usually recall the time their little niece or nephew was born.