When to Send Email Campaigns

The day and time you choose directly affects whether users open your email, read it, and take action. Even a high-quality email with a strong offer can fail if sent at the wrong moment.

The chosen day and time directly determines whether the user will open the letter, read it, and complete the target action.

Even a quality letter with a strong offer may not work if it is sent at the wrong moment and gets lost among dozens of other emails.

There is no universal answer. The same days and times can produce different results depending on the audience, niche, and type of business.

What Affects Email Campaign Effectiveness

The effectiveness of an email campaign depends not only on the content of the letter, but also on when exactly it is sent.

Even a strong offer may not work if the letter arrives at the wrong moment and gets lost among dozens of other messages. The user simply won't see it or will open it too late, when interest has already been lost.

The result of an email campaign is influenced by several factors at once.

All these parameters determine whether the letter will reach the user at the right moment and receive a response.

It's important to understand that there is no universal time that works equally well for everyone.

But there are general patterns that help choose optimal days and times for email campaigns and significantly increase open rates and engagement.

• day of the week
• sending time
• audience type (B2B or B2C)
• user behavior
• level of inbox competition

What Days Are Best for Sending Email Campaigns

The day of the week directly affects whether the user will notice the letter and open it.

Audience behavior changes throughout the week: on some days people actively check their mail, on others they are overloaded with tasks or already switching to rest mode. That's why the choice of day for an email campaign plays an important role.

In most cases, Tuesday, Wednesday, and Thursday are considered the most effective.

On these days, users have already settled into their work rhythm but aren't yet overloaded with tasks, as often happens closer to the end of the week. Attention to incoming mail is higher, which means the probability of opening the letter is higher too.

Monday is generally less effective. On this day people are sorting through accumulated tasks and emails, so campaigns easily get lost in the general flow.

Friday may work worse in the B2B segment, as attention shifts to completing work tasks and preparing for the weekend.

Weekends are used less frequently, but in some niches they can be effective due to less inbox competition and more free time available to users.

• Tuesday
• Wednesday

• Thursday

  

Best Time to Send

The sending time of an email campaign determines whether the letter arrives at a moment when the user is truly ready to open and read it.

Even with the right day, a letter may not work if it arrives at an 'inactive' time and quickly gets buried in the stream of new messages.

There are several time intervals that most often show good results.

Morning (8:00–11:00) — one of the most effective periods. During this time people start their workday and check their mail, sorting through incoming letters. If a campaign arrives at this moment, the probability of opening is significantly higher.

Afternoon (12:00–15:00) — a period of stable activity. Users continue to check their mail but less actively than in the morning. Suitable for campaigns that don't require an urgent response, as well as for more 'relaxed' content.

Evening (18:00–21:00) — works well in the B2C segment. After the workday, users have more free time and are ready to pay attention to letters. Purchases are more often made and decisions taken during this time.

Night (after 22:00) — generally shows the worst results. Users rarely check their mail at night, and by morning the letter may have 'slipped down' in the inbox list.

The optimal time for email campaigns always depends on the habits of your audience.

Best Days and Times for Different Business Types

The choice of day and time for an email campaign directly depends on the type of business and audience behavior.

Different users interact with their mail differently: some check it during working hours, while others check it in the evening or on weekends. That's why it's important to consider the specifics of your niche.

For B2B

In the B2B segment, letters are best sent on working days and hours, when people are actively engaged with tasks and making decisions.

Morning time is especially effective: users check their mail at the start of the workday and are ready to consider business-related offers.

It's important to avoid weekends and late hours — engagement is significantly lower during these periods.

• days: Tuesday – Thursday
• time: morning (9:00–11:00)

For Online Stores

In e-commerce, purchase decisions are often made outside of working hours, so evening campaigns show good results.

During the day users may browse offers, and in the evening — return and make purchases.

Friday can also be effective, as users more often plan purchases for the weekend.

• days: Tuesday, Thursday, Friday
• time: afternoon and evening

For Content and Blogs

Content performs better at the beginning of the week, when users are in the mood to receive new information and learn.

Morning campaigns allow you to reach the moment when a person is just starting their day and ready to pay attention to useful materials.

It's important to note that these are basic recommendations. Actual results depend on the specific audience, so the best approach is to test different days and times and analyze the response.

• days: Monday – Wednesday
• time: morning

How to Determine the Best Time for Your Email Campaign

Despite general recommendations, the best time for an email campaign is determined only based on your audience's data.

User behavior can vary greatly depending on the niche, product, and type of clients. That's why universal advice is only a starting point.

To find the optimal time, it's important to rely on analytics and regularly test hypotheses.

Statistics Analysis

The first step is to look at how users are already interacting with your letters.

Pay attention to key metrics.

This will help determine on which days and hours the audience is most active and ready to respond.

• open rate
• CTR (link clicks)
• time spent interacting with the letter

A/B Testing

One of the most effective ways to find the best time is to conduct regular tests.

You can check:

For example, send the same campaign at different times and compare the metrics.

Over time you'll see patterns and be able to choose the most effective intervals.

• different days of the week
• different sending times
• different audience segments

Base Segmentation

It's important to consider that different groups of users behave differently.

Each of these groups may have its own optimal time for receiving letters.

Segmentation allows you to send campaigns more precisely and increase the response rate.

The best time for an email campaign is not a universal value, but the result of analysis and testing.

The more you work with data, the more precisely you find effective days and hours for your audience.

• new subscribers
• regular clients
• inactive users

The days and times of sending email campaigns directly affect their effectiveness.

General recommendations help choose a starting point, but maximum results come only from working with your own audience.

The best approach is to combine general patterns, data analysis, and regular testing.

To find the best times and days for email campaigns, it's important to use a service with analytics and automation capabilities.

The Holymailer team will help you set up your first campaigns, test sending times, and build an effective email marketing system.

• send campaigns at the right time
• test different scenarios
• analyze results
• manage email campaigns