Compose now.
Deliver later.

Why it matters

A message that arrives outside of business hours creates an implicit expectation regardless of your intent. The recipient reads it, evaluates urgency, and either responds out of obligation or carries it as cognitive load until morning. Delay sending eliminates that dynamic: you write when you're thinking about it, they receive it when they're most likely to act or respond, often the morning of the next business day (e.g. 8AM scheduled send).

It's also an effective tool for follow-through and follow-ups. Scheduling a follow-up at the moment you commit to it — "I'll check in Friday" — why wait until Friday to manually do this? In that moment, draft the message and schedule it to be delivered Friday.