The Best Times to Send Marketing SMS (and Times to Avoid)

The exact same SMS sent at 10am and at 11pm will get very different reactions - one is a normal part of someone's day, the other feels like an intrusion. Timing is one of the few things about a campaign that costs nothing to get right, and it's one of the easiest things to get wrong when a campaign is scheduled without much thought.

General good windows

• Mid-morning (9am–11am) - after the school run and commute, before lunch
• Early afternoon (12pm–2pm) - lunch break browsing
• Early evening (5pm–7pm) - after work, before dinner, for consumer offers

These windows aren't universal law - a restaurant promoting a dinner special might do better sending at 4pm, right before the decision of where to eat gets made, while a B2B reminder to a business owner might land best first thing on a weekday morning. The right time follows from when the reader is actually going to act on the message, not just when they'll see it.

Times to avoid

Very early mornings and late nights are the obvious ones to skip for anything that isn't genuinely urgent - nobody wants a promotional text at 6am or 11pm, and a pattern of badly timed messages is one of the fastest ways to get a contact to opt out entirely. Sundays and public holidays are worth extra thought too: appropriate for some categories (a restaurant's Sunday lunch special) and tone-deaf for others (a debt reminder on Christmas Day).

This isn't only a courtesy question. South Africa's Consumer Protection Act restricts direct marketing communication outside of certain hours and days, and the National Credit Act adds specific restrictions around when debt-related communication can be sent. If SMS is being used for anything credit- or debt-related, the send-time rules aren't just etiquette - they're compliance. When in doubt, stick to weekday business hours for anything commercial.

Frequency matters as much as time of day

A well-timed message sent too often becomes noise regardless of the hour. There's no single right cadence for every business, but a useful check is to ask whether you'd be comfortable receiving the same message, at the same frequency, from a company you don't work for. If a promotional campaign every single day would annoy you, it's probably annoying your customers too.

Scheduling ahead

Because the best send time is rarely "right now," scheduling a campaign in advance rather than sending it the moment it's written is one of the simplest wins available. Writing a promotion on a Tuesday afternoon and scheduling it to go out Thursday at 10am, instead of sending it immediately, costs nothing and usually performs noticeably better.