By the end of today, Republican presidential hopefuls will have spent roughly 16 hours debating one another to help determine who will become their party’s nominee. Democratic candidates, in contrast, will have debated each other for about four hours.

But what’s most striking is not the difference between the number of debates the parties have scheduled, nor the amount of time they’ll spend debating. Rather, it’s when they’re debating. The Democratic National Committee, which organizes the party’s debates, has faced criticism for scheduling the debates at times when relatively few people will be watching.