The quick answer about the best time to send an email is Tuesday, Wednesday, or Thursday morning, somewhere between 9 and 11 a.m. local time. That’s the average across most of the recent benchmark data, and it’s a reasonable place to start if you have nothing else to go on.
But it's an average, which is broad. If you're managing a marketing list, running sales outreach, or just trying to get faster replies to your everyday work emails, the answer looks different in each case. The best time to send emails is the time your specific list opens, clicks, and responds. Industry numbers don’t help you pinpoint that exact moment, so it’s important to look beyond them.
This article covers what the latest data says about send times for different kinds of email, why the averages aren’t enough to go on, and how to find the best time to send emails to your audience specifically.
The short version, if you need a starting point
A few sources have crunched the numbers recently across hundreds of millions of campaigns. So if you’re looking for a starting point, here’s what the industry benchmarks say:
Best days: Tuesday, Wednesday, and Thursday lead across most analyses. An analysis of over 2 million campaigns found that Friday narrowly won on open rate (49.72%), with Monday close behind, but mid-week saw the most campaigns sent. Salesforce's data shows B2B engagement is strongest Tuesday through Thursday, with Monday and Friday weaker due to inbox catch-up and wind-down behavior.
Open rates concentrate between 8 and 11 a.m. local time, when most people clear their inbox at the start of the day. Click rates often peak much later, , as people return to action-oriented emails in the evening. recommends 8 to 11 a.m. for general engagement and 12 to 3 p.m. for click-throughs.
Worst times: Saturday and Sunday tend to underperform for B2B and most B2C categories. After 8 p.m., engagement drops sharply outside e-commerce, where evening shoppers remain active.
So if you are starting fresh and need a default, Tuesday at 10 a.m. is a sensible first send. But the more interesting question is whether that is right for your list, which brings us to the following section.
Why the averages don’t necessarily work for your audience
Aggregate send-time data smooths over the things that shape engagement: industry, audience type, time zone spread, and the kind of email you are sending. Sending one at 10 a.m. on Tuesday works well if your audience checks email at their desk on weekdays. It works less well if half your list is freelance creatives in three time zones, or if you are emailing nurses on rotating shifts.
One study examined personalization in email marketing across newsletter subscribers. They found that personalization effects, including timing, are not uniform: what lifts engagement in one segment can dampen it in another, and individual characteristics such as age moderate recipients' responses. The takeaway is straightforward. Industry "best time" numbers are population averages, and your list is rarely an average of the population.
A few practical things this means.
B2B audiences behave differently from B2C. Professional inboxes are scanned during work hours. Consumer inboxes get checked at lunch, during the commute, and in the evening.
Creator and lifestyle audiences often engage better in the evenings and on weekends. The 10 a.m. weekday default can land in a dead inbox.
Time zones change everything. A 10 a.m. Eastern send hits a West Coast subscriber at 7 a.m., before they have opened their laptop. If you are sending across regions, scheduling based on the recipient's time zone matters more than picking the "right" hour.
Inbox AI filtering has changed the rules. Gmail's Promotions tab and Outlook's Focused Inbox determine which emails are even visible to the user. Early engagement on a campaign now signals to mailbox providers whether the rest of your sends deserve primary placement.
None of this means the benchmark data is useless. It means you should treat it as a starting point and let your own data finish the answer.
Best time to send marketing emails
Newsletters, promotional campaigns, and nurture sequences are where the most send-time research has been done, because the volume is high and the metrics are easy to measure. Omnisend's research shows Tuesday has the highest average open rate (11.36%), with Wednesday and Thursday close behind. Click-through rates often peak later in the week, with Friday and Sunday performing well for certain audiences.
For most B2B marketing emails, 9 to 11 a.m. mid-week is the safest default. For B2C and e-commerce, the picture is wider. Promotional emails often perform well in the late afternoon and early evening, particularly Thursday through Sunday, for retail. And there is a known dip around lunchtime for opens, but a spike for clicks, if the goal is a click rather than visibility, afternoon timing is the stronger play.
A few principles that hold up across most analyses:
Optimize for the metric that matters: Open rate is a vanity number on its own. If you are running a promotional campaign, click-through and conversion matter more, and the best time for an open is often not the best time for a click.
Mid-month sends tend to outperform: Omnisend’s data shows the 10th and 24th of each month as the strongest dates for open rates, with the 29th the weakest. The first and last weeks of a month tend to see more inbox noise from invoices, payroll, and reporting.
Frequency matters more than perfection: A predictable Tuesday morning send teaches your audience when to expect you. That habit builds over time, more reliably than chasing the "perfect" hour every week.
If your inbox is already a mess of marketing emails you signed up for and stopped reading, that says something about how much send-time alone can do.
Best time to send an email newsletter
With newsletters, you’ve already captured the person’s consent, confirming their interest in your offering. The engagement question is about meeting buyers when they’re most receptive to your content.
The data here is interesting because it varies by audience type more than any other email category.
B2B newsletters perform best in the same Tuesday-Thursday morning window as other work emails. Your subscriber is likely reading at their desk, often with coffee in hand, before the meetings start.
Creator-led newsletters (Substack-style writers, personal brands, lifestyle content) often see strong engagement in the evenings and on weekends. People treat them more like reading than work. Friday afternoon and Sunday morning are both common winners.
Institutional newsletters (universities, government bodies, professional associations) tend to perform best in the early morning, when subscribers are actively scanning for the day ahead.
The more “professional” your newsletter feels, the more it benefits from weekday morning sends. The more it functions as something subscribers settle into to read, the more an evening or weekend slot will work.
Best time to send sales and outbound emails
Cold outreach and sales follow-ups are a different game. You’re not part of a recurring rhythm. You’re trying to land at the top of someone's inbox at the moment they are about to scan it.
Credible analyses recommend sending cold emails between 6 and 9 a.m. local time, so they sit near the top when the recipient opens their inbox at the start of the working day. The runner-up window is early afternoon, around 1 to 2 p.m., when people return from lunch and clear out anything that arrived during the morning.
A few specifics for sales and outbound:
First send: Tuesday or Wednesday morning is the most reliable. Avoid Mondays (catch-up backlog) and Fridays (people are out, mentally or literally).
Follow-ups: Wait at least three working days, then send mid-morning. Open rates on follow-ups are often higher than the original because the recipient now recognizes your name.
Time zones: Always send to the recipient's local time. A 7 a.m. (Pacific Time) Send to a New York prospect who arrives at 10 a.m. Eastern, which is fine. A 7 a.m. Eastern send to a Pacific prospect arrives before they are awake and gets buried by the time they look.
Response speed beats send time: If a prospect replies, the gap between their message and your response shapes their impression more than any send-time strategy. Slow replies kill momentum.
Sales is increasingly a speed game, and the best send-time strategy is wasted if the reply takes a day to write.
Best time to send e-commerce emails (abandoned cart, upsell, win-back)
Ecommerce email has its own timing logic because most high-performing emails are triggered by customer actions rather than scheduled by marketers.
Abandoned cart: Send the first reminder within 1 to 2 hours of the abandonment, while intent is still warm. A second nudge at 24 hours and a final at 72 hours is the standard cadence.
Post-purchase upsell: 3-7 days after delivery, depending on the product. Too soon, and the customer has not used it yet. Too late, and the buying moment has passed.
Win-back campaigns: 30, 60, and 90 days after the last engagement. Mid-week, late afternoon often performs best.
Promotional sends: Thursday evening through Sunday morning is the strongest window for most retail categories. People are mentally moving into weekend mode and are more open to browsing.
Best time to send recruitment and follow-up emails
The best time to reach candidates depends on whether you are sending an initial outreach or a follow-up.
Initial outreach: Tuesday and Thursday between 8 and 10 a.m. local time. Candidates check their email before the workday starts, and a recruiter's message stands out against the work email backlog.
Post-application acknowledgment: Within 24 hours, ideally within a few hours of application. This is less about timing and more about responsiveness. A delay reads as disinterest.
Interview follow-up: Within 24 hours of the interview. Mid-morning the day after works well. Same-day can feel rushed, more than two days reads as lukewarm.
Feedback after a rejection: Within 48 hours, mid-week, mid-morning. Avoid Friday afternoons. The news is hard enough without arriving as someone is finishing their week.
Best time to send everyday work emails
This is the category that most send-time advice ignores, even though it is the email most professionals actually send in their day-to-day. Internal updates, replies to colleagues, requests for input, project follow-ups.
Email is the single biggest source of avoidable admin for UK and US professionals. According to Fyxer's Admin Burden Index 2026, a survey of 5,000 UK and US office workers, email is the #1 time-wasting admin task, and the average office worker receives around 29 emails per day requiring a response. Workers are already losing 5.6 hours per week to admin that AI could handle, and a significant chunk of that is email timing and triage decisions that could be made once rather than all day long.
These don’t have a scheduled cadence, and the right time to send them depends on factors such as urgency, the type of email, and who you’re responding to. A few patterns that hold up in practice:
Late-night sends create expectations: If you send an email at 10 p.m., you are also signaling that you work at 10 p.m., and you’re setting an unwritten norm that others should too. A systematic review of 25 years of work email research identified communicating and adhering to email access boundaries as one of four "super actions" that consistently predict both better well-being and better work performance. The implication for send times is direct: if you write outside hours, use the delay-send function so the message lands when you actually want a reply.
Friday afternoon and Monday morning are both common dead zones for getting a response: If something needs action, sending it Tuesday through Thursday mid-morning gives the recipient the best chance to read, think, and reply before the week ends.
Time-sensitive replies should go fast, regardless of the hour: The best time to reply to a client's question is the moment you have the answer. But for non-urgent emails, batching sends to two or three windows a day, late morning and late afternoon, tends to reduce the back-and-forth tail of replies.
How to find the right send time for your audience
This is where the actual answer lives. Finding your real best send time takes a few weeks of testing, and it is worth the effort because it is the only number that matters for your specific list. The industry benchmarks above can help you narrow down which days and times to test.
What to measure
Open rate is a starting metric, but it has become less reliable since Apple Mail's privacy changes in 2021, which inflate open counts for users with iOS Mail Privacy Protection enabled. Look at it alongside other signals:
Click-through rate: The action signal. If your email is meant to drive a click, this number tells you whether the timing worked.
Reply rate: For sales and outbound, the only metric that matters is. Higher opens with the same reply count means the timing improved visibility without improving relevance.
Time-to-engagement: How long after sending does most engagement happen? If your audience consistently opens 4 hours after send, you are probably an hour or two too early.
Conversion or downstream action: Did the click lead anywhere? An email that drives clicks but no signups, replies, or purchases is timed for visibility, not outcome.
How to test
Run an A/B test on send time, holding everything else constant. Same subject line, same body, same audience segment, two different send windows.
Don’t limit yourself to something simple like A 2-week test on one variable, because you won’t be left with a confident answer. A 6- to 8-week rolling test across several campaigns offers deeper insights and clarity.
A few practical rules to keep in mind:
Change one variable at a time: If you change the time and subject line, you will not know which one caused the number to move.
Segment by audience type, not just behavior: Your enterprise customers may engage differently from your SMB customers, even within the same list. Test send times by segment if your platform allows it.
Use the recipient's time zone: Most modern email platforms let you schedule emails based on the subscriber's time zone. Turning this on is often the single biggest lift for distributed audiences.
Test windows, not minutes: "10 a.m. vs 2 p.m." is a useful test. "10:00 a.m. vs 10:15 a.m." gets too specific to the point where it’s noise.
Make sure your sample is big enough to trust: Send-time differences are often small, in the range of 1 to 3 percentage points on open rate. As a rough floor, aim for at least 1,000-2,000 emails per variant (provided your list is big enough) before taking the results as a signal.
Account for seasonality
This really depends on your audience and industry. For example, seasonality is typically a bigger consideration for travel or ecommerce industries. But even in B2B, engagement drops in late December and the first week of January.
So, for the sake of reliable overall performance data, track how engagement varies across seasons.
The practical fix is to either run tests during a normal stretch of the calendar or keep testing over enough months so that seasonal noise averages out. The same goes for day-of-month patterns. Some lists engage better mid-month; others spike around payday at the start. If you have the volume to test it, day-of-month is worth treating as its own variable.
Re-test once you have a winner
Audience behavior drifts. The mid-week morning slot that worked last year may have weakened as your list grew, your audience mix shifted, or the inbox AI rules changed around you. Treat your current best send time as the answer for this quarter and re-run the test every 6 to 12 months to catch drifts early.
Tools that help you send emails at the right time
The work of testing and optimizing send times has become a lot less manual. Most modern email platforms, such as MailChimp, HubSpot, Klaviyo, and Brevo, now have some form of send-time optimization built in.
These features all use historical engagement data to schedule each subscriber's email at their personal best time. Performance varies by list size (most need at least a few thousand active subscribers to work well), but for any reasonable-sized list, turning these features on is a low-effort gain.
Most platforms natively support audience-specific time zone scheduling, too. If your list spans regions, you can segment it by time zone and schedule accordingly.
For everyday work emails, the timing question is different because of the sheer number of different emails you have to send to different people. There are no templates and email blasts for a fixed segment.
You’re responding to emails on the fly, sharing updates at the right time, requesting information when you know people are more likely to respond, etc.
For everyday work emails, the timing problem is less about scheduling and more about response speed. A client question that lands at 4 pm and gets answered by 4:15 moves faster than one that sits overnight.
Fyxer addresses this directly. It sits inside Gmail or Outlook, organizes incoming email into 8 categories with To Respond at the top, and drafts replies in your voice before you've opened the thread. By the time you get to a message, the groundwork is done and you decide whether to send now or sit on it.
It also flags emails you've sent that haven't had a reply after a few days and drafts the follow-up so the second touch doesn't slip. For anyone managing a sales pipeline or client workload, that's where send-time discipline actually pays off.
Best time to send emails FAQs
What is the worst time to send an email?
Saturday and Sunday tend to be the weakest days for B2B and most B2C categories. Within weekdays, late Friday afternoon and very early Monday morning both underperform, the first because people are mentally checked out, the second because the inbox is too full of weekend backlog to surface a new send. After 8 p.m. local time, engagement drops sharply for most categories outside of e-commerce.
Does sending on weekends ever work?
Yes, for certain audiences. Creator newsletters, lifestyle content, and e-commerce promotions often see stronger weekend engagement because inboxes are quieter and audiences are in a different mindset. Sunday morning is a particularly strong slot for newsletters that subscribers settle in to read. For B2B, weekends are generally a waste of a send.
How often should I send marketing emails?
Frequency depends on the type of email and the audience, but a few general rules hold. For most newsletters, one send per week works. For nurture sequences, every 3 to 5 days is common. For promotional retail emails, 2 to 4 per week is the upper end before unsubscribe rates climb. The more predictable your schedule, the more your audience learns when to expect you.
Does send time actually matter, or is the content all that counts?
Both matter, but they do different work. Content determines whether the email gets read and acted on. Timing determines whether it gets seen in the first place. A perfectly written email sent at 11 p.m. on Saturday may not get traction. An average email sent at 10 a.m. Tuesday will usually get more eyeballs overall. Get timing approximately right, then let your content drive the engagement.
How long should I run a send-time test before changing anything?
At least 4 to 6 weeks across multiple campaigns, with the same audience segment and similar content. A single A/B test on one email will not give you a reliable answer, because email engagement is noisy. Look for patterns across multiple sends, and only change your strategy when the difference is consistent.
