Just inside, and reliably so
At noon in every year from 1930 to 2035 the Sun on 22 April stood between roughly one and a half and three degrees of Taurus. The sign begins at zero, so the smallest margin in that century is around a degree and a half, which is a day and a half of solar motion.
That margin is larger than the drift it has to survive. The crossing into Taurus moves about six hours later each common year and jumps back roughly a day when February gains one, and time zones shift the calendar date again. None of that reaches back to 22 April. Every year in the sample is Taurus.
Why some sources still print Aries for this date
Published ranges are rounded. A table that says Aries runs to 20 April and another that says 21 April are both approximating a moving instant, and the rounding conventions differ between publishers and between decades. Older tables tend to be later, which is how a date this far inside Taurus picks up an occasional Aries label.
There is also plain copying. A range set down in a mid century almanac gets reproduced without recalculation, and the drift it was approximating has moved on since. The calculated position does not have this problem, because it does not use ranges at all.
There is a second reason the confusion sticks. People remember the range they were told as children and carry it for decades, so a corrected table meets a memory rather than a blank page. The position is the only thing that settles it, and it settles it for one specific birth rather than for the date in general.
What the first face of Taurus carries
Two degrees falls in the opening ten degree band of the sign, from zero to ten. The Chaldean order, running Mars, Sun, Venus, Mercury, Moon, Saturn and Jupiter without a break from the start of Aries, arrives here on Mercury. The triplicity scheme gives each earth decan to Taurus, Virgo and Capricorn in turn, so the first belongs to Taurus itself and its ruler is Venus.
Venus rules the whole sign in either scheme, so under the triplicity count this band gets the same planet twice over, and under the Chaldean count it gets a Mercury layer inside a Venus sign. Those are different readings, both traditional, and a source quoting one rarely mentions the other exists.
What a date on this side of the line does not fix
The Moon on 22 April can be in either of two signs depending on the hour and in any of the twelve across different years. The ascendant turns through the whole zodiac in a day, so it depends on the hour and on the latitude of the birthplace and cannot be guessed from a date.
The date gives a Sun in the opening third of a fixed earth sign ruled by Venus, near two degrees. That is a real and specific fact, and it is one placement. The widget above takes the year, hour and birthplace, returns the exact degree, and reports how far the birth actually fell from the Aries boundary behind it.
Questions people ask about this
Is 22 April Aries or Taurus?
Taurus, in every year checked at noon from 1930 to 2035. The Sun is already a degree and a half or more past the boundary, which is more margin than the year to year drift can cover.
Why do some charts still say Aries for 22 April?
Because printed ranges are rounded approximations of a moving instant, and old tables get copied forward without recalculation. The calculated position does not depend on any range.
What degree of Taurus is this?
Around two degrees, with a century range of roughly one and a half to three. The widget above will give your exact figure once it has your year, hour and birthplace.
Which decan does a 22 April birthday fall in?
The first decan of Taurus, zero to ten degrees. Its ruler is Mercury in the Chaldean face order and Venus in the triplicity scheme.
Does being early in a sign mean anything?
The tradition reads the opening degrees as the sign at its least developed rather than as a weakness. It is interpretation, and the position itself is as fully Taurus as any other degree.
Do I need my birth time?
Not for the sun sign here, which holds in every year. You need it for the Moon, the rising sign and the houses, none of which the date can supply.