You can set everyone on your team's email reminders and digests to the same time if you're a team manager.
Log in to your team account and click on "Settings" on the far right side of the screen.
On the Member page, directly underneath where it says, "+ Add team members," you can set everyone's email reminders or digests to the same time and day.
Once you've designated a time and day for your team emails, just click "Go"!