Cold email send-time calculator
Pick a recipient timezone and audience and get the best recipient-local send windows, the best days of the week, and a weekly cadence — with the reasoning. Free, private, no signup.
100% client-side — nothing leaves your browser. Times are recipient-local; schedule by their timezone, not yours.
Cadence: Send 4 touches over ~14 days: day 1, day 4, day 8, day 13. Vary the angle each time.
Avoid Monday before 10am and anything after lunch on Friday.
Knowing the window is one thing — hitting it across every recipient's timezone is another. Autocloz schedules each send in the recipient's local time automatically.
Auto-schedule by timezone — start freeSend-time calculator FAQ
Is the send-time calculator free?+
Yes — free, no signup, 100% client-side (nothing you type leaves your browser).
Are the times in my timezone or the recipient's?+
The recipient's. Open rates track the recipient's local clock, so schedule each send in their timezone — not yours.
What's the single best time to send a cold email?+
For a general business audience, Tuesday to Thursday around 8:00–9:30am recipient-local is the reliable peak, with a secondary window right after lunch. The exact window shifts by audience — execs read earlier, developers later.
Right window, every timezone — automatically.
Autocloz schedules each send in the recipient's local time, so your whole list hits the inbox at the best moment without you doing the math.