How often should second date be?
If you are talking about a second date following a first date, then usually a couple days or a week is within the normal range. If you have already been on several dates, then a day or two is normal. Again, it depends on the couple, their schedule, and the relationship they have.
How soon after a first date should you ask for a second?
Based on the data provided by 118 honest women, 73% of these women believe its appropriate to ask for a second date 1-2 days after the first date. 44% of women said its ok to ask 1 day after the first date. 29% of women said its ok to ask 2 days after the first date.