As a Salesmsg user in AU because I am ~18 hours a head of the US I am unable to schedule a broadcast same day, the earliest I can schedule one it is one minute a head of current local time, but I can't target the customers local time in the united states with the "send at contacts timezone"
Example "should arrive at 4pm ET 4/10 is passed today, but for me it's 4/11 already and I can't schedule it"