Best time to send WhatsApp marketing messages
Mid-morning (roughly 10am to noon) and early evening (6pm to 8pm) on weekdays are the safest general windows, in the recipient's own local time. What matters more than the exact hour is avoiding the ones that generate reports: nothing before 9am, nothing after 9pm, and nothing overnight. Set Quiet Hours so a scheduled campaign cannot drift into them.
The windows
| Window | Assessment |
|---|---|
| Before 9am | Avoid. Reads as intrusive, and catches people still asleep. |
| 10am – 12pm | Good. People are at their phones and settled into the day. |
| 12pm – 2pm | Reasonable. Lunch gives good open rates, but replies are short. |
| 2pm – 5pm | Weakest of the working windows — messages get buried. |
| 6pm – 8pm | Good, often the best for consumer audiences. |
| After 9pm | Avoid. |
| Overnight | Never. This is a ban risk, not just poor manners. |
By day: Tuesday to Thursday are the strongest for business audiences. Monday mornings are crowded, Friday afternoons are ignored. For consumer offers, weekends can work well — but keep to daytime.
Late-night messages are a disproportionate risk. A message that wakes someone gets blocked and reported at a far higher rate than the same message at 11am. Since report rate is the strongest driver of restrictions, timing is an anti-ban control as much as a marketing one — see How to avoid a WhatsApp ban.
Use Quiet Hours as a guardrail
Quiet Hours (Settings → Sending Controls) blocks sending outside the window you set. It is off by default — turn it on.
It matters most for the cases you are not watching: a campaign that runs longer than expected, a scheduled send that starts later than planned, or a large list that is still going at midnight. With delays of 5 to 15 seconds, 200 messages takes over half an hour; at 60-second delays it takes more than three hours. A campaign started at 7pm can easily still be running at 10pm.
Set the window narrower than you think you need — 9am to 8pm rather than 8am to 10pm. The cost of a message not going out until tomorrow morning is nearly zero. The cost of one arriving at 11:40pm is a report.
Time zones
Quiet Hours applies in your computer's local time, not the recipient's. For a list spanning regions, the fix is to split it:
- Create a contact group per region.
- Create one campaign per group.
- Schedule each so it lands inside that region's daytime.
If they also need different numbers, this pairs naturally with running one campaign per device — see Run multiple devices and spread volume.
The single worst case is a business sending to a list spread across many countries on one schedule. Someone is always receiving it at 4am, and those recipients report at a much higher rate. Splitting by region fixes it entirely.
Timing your first message vs your follow-up
- First contact deserves the best window — mid-morning on a Tuesday to Thursday. It is the message most likely to be reported, so give it the least intrusive slot.
- Follow-ups to people who already replied are far more forgiving, because a two-way conversation exists.
- Transactional messages — order updates, appointment reminders — should go when they are useful, not when a marketing window says. A dispatch notice at 8am is fine because it is expected.
Find your own answer
General guidance only gets you to a starting point; your audience has its own rhythm. Run the same message to comparable segments at two different times, then compare in Analytics — not just delivery, but replies, which is the number that actually matters. Export the campaign logs and compare like for like.
Two or three tests will tell you more about your list than any published benchmark.
Frequently asked questions
What is the best time to send WhatsApp marketing messages?
Mid-morning, roughly 10am to noon, and early evening, 6pm to 8pm, on weekdays in the recipient's local time. Tuesday to Thursday are strongest for business audiences. Avoid anything before 9am or after 9pm.
Why does sending at night increase the risk of a ban?
A message that arrives while someone is asleep is blocked and reported far more often than the same message during the day, and recipient reports are the strongest driver of WhatsApp restrictions. Timing is an anti-ban control, not just a marketing preference.
Do Quiet Hours use my time zone or the recipient's?
Your computer's local time. For a list spanning time zones, split it into a contact group per region and schedule a separate campaign for each so every send lands inside that region's daytime.
How long does a campaign take to send?
It depends on your delay settings. At the default 5 to 15 seconds, 200 messages takes over half an hour; at 60-second delays the same campaign runs for more than three hours. Allow for that when scheduling, or a campaign started in the evening can still be running late at night.
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