Best Time to Send Marketing Emails (Data-Backed Guide)

Timing your emails correctly can lift open rates by 10–20% without changing a single word. This guide covers what the data says — and how to find the optimal time for your specific audience.

What Does the Data Show?

Aggregating data across billions of emails sent through major platforms in 2025–2026:

Best Days to Send

1. Tuesday — consistently the top performer across industries
2. Thursday — close second, especially for B2C
3. Wednesday — strong for B2B

Worst Days to Send

• Monday — inboxes are flooded from the weekend
• Friday — people are mentally checked out
• Weekend — lower open rates overall, though B2C exceptions exist

Best Times to Send

• 10:00–11:00am — peak performance for most industries
• 1:00–2:00pm — post-lunch second peak
• 8:00–9:00am — catches people during their morning routine
• 6:00–8:00pm — strong for B2C retail and personal finance (people browsing in the evening)

Industry-Specific Insights

B2B / SaaS

• Best: Tuesday–Thursday, 9–11am
• Avoid: Mondays (busy) and Fridays (winding down)
• Decision-makers check email early, then get into meetings — catch them before 11am

E-Commerce / Retail

• Best: Thursday–Sunday, 6–9pm
• Weekend sends work well for retail — people are in shopping mode
• Sunday evening performs particularly well for time-sensitive offers

Media / Newsletter

• Best: Tuesday–Thursday, 6–8am or 7–9pm
• Newsletter readers often check during commutes or before bed
• Consistency matters more than optimal timing for newsletters

Non-Profit

• Best: Tuesday–Wednesday, 10am–12pm
• Mid-week, mid-morning donations perform best

Time Zone Matters More Than Day of Week

Always send in your subscriber's local time zone. Sending at "10am" means nothing if your list spans 10 time zones — you will be sending at 3am to a large portion of your audience.

Strategies:

1. Segment by time zone — create separate sends for major geographic regions
2. Send-time optimization — MisarMail's AI analyzes each subscriber's historical open patterns and delivers at their personal peak time

How to Find YOUR Optimal Send Time

Industry data is a starting point. Your audience is unique. To find your specific best time:

A/B Test Send Times

1. Split your list into 3–4 equal groups
2. Send identical emails at different times (e.g., 8am, 10am, 1pm, 6pm)
3. Compare open rates and click rates for each segment
4. Repeat 3–5 times to confirm the pattern

Analyze Your Historical Data

MisarMail's analytics shows open rate by hour of day and day of week for your specific list. Look for peaks in your own data rather than relying purely on industry benchmarks.

Use Send-Time Optimization

MisarMail's send-time optimization feature tracks when each individual subscriber historically opens emails and delivers your campaign at their personal optimal time — automatically.

Does Timing Matter More Than Content?

No. Content quality and relevance always matter more than timing.

A highly relevant, perfectly personalized email at "the wrong time" will outperform a generic, irrelevant email at "the optimal time." Timing is a multiplier on content quality — not a substitute for it.

Focus in this order:

1. Relevant subject line and content
2. Proper segmentation and personalization
3. Then optimize timing

Quick Reference

Audience	Best Day	Best Time
B2B / SaaS	Tuesday	9–11am local
E-commerce	Thursday, Sunday	6–9pm local
Newsletter	Tuesday	7–9am local
B2C (general)	Tuesday–Thursday	10am–1pm local

Use send-time optimization on your next campaign →