Best Time to Send Email Calculator

Research points to Tuesday and Thursday as the strongest days overall, though the gap between the best and worst day is small in most studies. Mid-morning and early afternoon are commonly cited as good windows, but findings on the exact best hour vary by study. The best time for you also depends on the type of email you’re sending (cold outreach performs best earlier than a newsletter) and your recipient’s industry. Use the calculator above for a recommendation based on your own settings.

Yes. Best time to send is about when your recipient opens their inbox, not when you hit send. This tool uses your own detected time zone as the basis for its recommendation, so it works best when you and your recipients are in a similar region. If they’re somewhere very different, use the day-of-week pattern as your main signal and adjust the hour for their local time.

Different industries have documented differences in email engagement. B2B and SaaS audiences tend to check email during standard business hours on weekdays. E-commerce and other consumer-facing emails often engage more in the evening or on weekends. Recruiters and job seekers tend to check email outside their current work hours. Picking your recipient’s industry adjusts the recommendation to match these patterns.

For most B2B and general business email, yes. Weekend opens and response rates are typically lower for that audience. There are exceptions. E-commerce and other consumer-facing emails often perform well on weekends, when people have more free time to browse. Not every country’s weekend falls on Saturday and Sunday either. Several countries in the Middle East observe a Friday-Saturday weekend, which this tool accounts for automatically based on your detected location.

The percentage on each cell is an estimated open rate, not a measurement of your actual sends. It comes from an algorithm we built, not a database of real sends: a base day-and-hour curve, informed by published research that Tuesday and Thursday tend to slightly outperform other days and that mid-morning and early-afternoon sends tend to do well, combined with adjustments for the email type and industry you pick, then the correct weekend days for your location. Findings on the exact best hour vary by study, and the gap between the best and worst day of the week is small in most research, so treat the estimate as a relative comparison between times for your settings, not an exact prediction. It’s also worth knowing that since Apple Mail Privacy Protection began pre-fetching tracking pixels for a large share of opens, published open-rate averages have been inflated industry-wide, which is part of why we call it an estimate rather than a precise figure. Everything runs directly in your browser. No data is sent anywhere, and nothing is stored. Sources: industry open-rate benchmarks compiled by Mailneo, CoSchedule’s review of 10 send-time studies, and Omnisend’s 2025 send-time research.

Yes, completely free, with no sign-up and no limit on how many times you can use it.