When to leave your baby?

This is such a far away future thing for us but I’m just curious on others opinions. When do you feel comfortable leaving your child for more than just a few hours, maybe a few days or a week with someone other than your spouse?

I’m wanting to plan a cruise or a trip out of the country to do in the next few years. Of course I won’t be doing it for a while but was thinking maybe around 3-4 I would feel comfortable going out of the country and leaving my daughter for a few days to a week.

I already feel like I won’t feel comfortable leaving her for more than a few hours until after she’s a year old. I’m sure some people will think I’m crazy.