What time are the most of them on cam?
The grid fills from late afternoon in South America and stays full into the small hours, which is roughly 20:00 to 04:00 in central Europe and from early evening onward on the US east coast. The count above the grid is live, so it answers itself at whatever hour you are reading.
Do they speak English?
Nearly all of them. Almost every woman on this list has English on her profile alongside Spanish, and the ones who type in English do it fluently. Her languages are listed on her own page, under her photograph.
Why are there so many Latinas here?
LiveJasmin recruits heavily through studios in Colombia and Venezuela, so Latin America is the biggest source of broadcasters on the platform overall. That carries straight through into this list.