What is the best day and time to send marketing emails?
There is no universal best time. Test send times against your own audience and judge by clicks and revenue, not opens.
Time zones, audience habits and product type all change the answer. A repeatable approach is to run controlled tests over several weeks.
Consistency also helps deliverability, so avoid wild swings in when and how much you send.
In practice.
A store sends the same campaign on a Tuesday morning to one half and a Thursday evening to the other. It repeats the test across several weeks before changing its schedule, since one test can be noise.
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