Mercury's year is 88 Earth days. Its tilt is such that for one orbit around the sun (88 Earth days) one side is always in light. For the following entire orbit (88 Earth days) that side would be darkness (night). So in two Mercurian years (two orbits), there is only one day (sunrise to sunrise). Thus it is on MERCURY that you have two birthdays in one single day.
Jupiter would celebrate the most birthdays since it has the shortest day length of all the planets in our solar system, completing a rotation on its axis in just under 10 hours.
The day when your cat was born when that same day comes it is her/his birth day!
But they are on the same day every year, for example mine is always on the 17th day of the month.
No
Their birhtday was the same as any other normal day
Since Jehovah's Witnesses do not celebrate birthdays, you would use the same greeting that you do any other day of the week.
If we measured a year based on the rotation of the Earth around the Sun (solar year) instead of using the Gregorian calendar system, our birthdays would be on the same day each year. This would result in birthdays being the same distance apart with no variations due to leap years like in the current calendar system.
They all have different birthdays. Way to assume they were all born on the same day.
No. In this day and age, practically everyone on this planet knows exactly when he/she was born. Celebrating birthdays moreover is rooted in most of the cultures of this world.
No
Yes, birthdays are real. They are the day you are born. Therefore they are real.
I think June 11 or June 15... Leo was born in the same day as Amanda, so their birthday should be the same.