To find out what times during the day are best for email opens and click-throughs, email marketing software provider GetResponse analyzed 21 million messages sent from US accounts during the first quarter of 2012.
The study found that 23.63% of all email opens occur within the first hour after delivery. Within the second hour after delivery, the results drop by half.
The top engagement times for email are as follows: in the mornings, 8 AM to 9 AM both for opens and click-throughs; and in the afternoons, 3 PM to 8 PM for opens, and 3 PM and 4 PM for click-throughs.
Time zones are also a consideration: Email marketers should keep in mind local times and work routines around the world, and stagger their mailings accordingly, keeping in mind the best times of day for engagement.