Do I need to see the date when I apply for a conversion certificate?

Depending on the date, it depends on which day the registration office will rest and which day to apply for a certificate. If you want to choose an auspicious day, you are wrong. Buddhism is about cause and effect, good is rewarded with good, and evil with evil. We are resistant to some unorthodox ways of looking at auspicious days, directions and fortune-telling for no reason. Think it's superstition. If you want to convert to Buddhism, you must be sincere and not superstitious.

No matter which day, as long as you convert to Buddhism, that day is the best day. Because you're getting rid of it.