When does the system send out "Alerts"?

Alert emails are sent by the system at the following times:

Your alert frequency
setting
Alerts are sent at approximately
(US Pacific timezone)
Once every 24 hours Between 12:00 am and 1:00 am
Once every 6 hours Between 12:00 am and 1:00 am - and every 6 hours thereafter
Once every hour 15 minutes past the hour, every hour

Please note that these times are approximate times only, and the time you receive the alerts may vary.