Best Time to Send SMS in Australia: By Message Type

For promotions, the best time to send an SMS in Australia is mid-morning on a weekday. A second window opens in the early evening. For a reply to a new enquiry, the best time is within minutes of the lead arriving, whatever the clock says. The right answer depends on what the message is for. One perfect hour does not exist.

This guide is for founders and heads of sales at service businesses that pay for leads through Google or Meta ads. You send a few kinds of text: promotions, appointment reminders, review requests and sales follow-up. Each has its own best moment. We cover the windows Australian sources suggest, the rules that limit you and a simple test to find what works for your list.

The short version by message type

Use this table as a starting point. Then test it against your own audience.

The sections below explain each row and where the figures come from.

Why message type matters more than the hour

Most "best time" articles give one window and one day. The sources disagree, and that is a clue. One Australian provider points to 10am to 12pm on weekdays as peak engagement for most industries, with 5pm to 7pm as the second-best window. It says this holds especially for retail and hospitality. Another Australian source recommends 10am to 11am from Tuesday to Thursday to dodge the crowded end-of-week peaks. A third says there is no universal best time and it depends on the message type.

They are not wrong. They measure different lists, industries and messages. A cafe voucher and a quote follow-up for a $30,000 job are not the same text. They should not share a schedule.

For a service business, the better question is this: what is this person doing when the message lands, and what do I want them to do next?

Promotions and campaigns to your existing list

If you send offers to past customers or a warm list, start with two windows:

• Mid-morning on weekdays (10am to 12pm). People are at their desk or between jobs. A text is easy to read and answer.
• Early evening on weekdays (5pm to 7pm). Work is done and phones come out. This suits consumer-facing services best.

Separate guidance for service businesses says residential services do best with promotions on weekend mornings, while B2B services do best midweek in business hours. That source writes for the US market. Treat the weekend point as a hypothesis to test. The Australian figures below lean the other way.

Is 7am too early?

For a promotion, usually yes. One Australian guide advises avoiding the start of the working day, when people are commuting or getting the kids out the door. A cold promo at 7am fights everything else on the phone and feels pushy. A message the customer expects is different. If a technician is on the way, the hour matters much less.

Which day?

Weekdays beat weekends. Australian data compiled by one SMS provider shows Thursday topping the table, with weekday campaigns outperforming weekend campaigns on reply rates. The same page reports Saturday opt-out rates three to four times higher than weekdays (6.7% on average). Remember that number if you are tempted by a Saturday blast. A wrong send costs you people leaving your list.

These are provider-published figures, not independent research. They show a direction, not a promise.

Appointment reminders and review requests

Your customers want these messages. They are the easiest to get right.

Appointment reminders work best about 24 hours before the appointment. That gives the person time to rearrange, and it is not so early that they forget. If you book a lot of first consultations, test a second short reminder on the morning of the appointment.

Review requests work better timed than triggered. An Australian provider suggests sending between 11am and 2pm, or four to six hours after service completion. It often beats an instant automated message. Its author says a text fired one hour after the job lands in the commute or at dinner. The logic holds. Ask when the customer is sitting down with their phone, not driving home.

Want to see how texting and email split the work across a sale? Our guide to SMS versus email for sales follow-up covers when each channel fits.

Sales follow-up: speed beats the clock

This is where the "best time" question changes shape. It is also where the most money sits for a business running ads.

Someone fills in a form after clicking your Google or Meta ad. The best time to text is almost straight away. Research on online lead handling in Harvard Business Review found that most companies are not responding nearly fast enough to online enquiries. Waiting for 10am because it is the "best time" is a bad trade. The lead has likely spoken to someone else or moved on. The problem that made them search is the loudest thing in their head right now. It will not be in an hour.

A practical cadence looks like this:

1. Within 5 minutes: a short, personal text that acknowledges the enquiry and asks one easy question.
2. Same day: a follow-up if there is no reply, ideally by a different channel such as a call or an email.
3. Over the next two weeks: a handful of further touches. One US source recommends an instant trigger within five minutes followed by secondary touches over a two-week period.

Doing this by hand is where most teams slip. That is why an instant reply agent sends the first text for you and hands over to your team. The send-time rules apply to the later touches, not the first one. For follow-ups three, four and five, mid-morning on a Tuesday or Wednesday earns its keep.

What about a lead at 9pm or on a Sunday? Reply promptly if your message answers something they just did. A quick acknowledgement is welcome. A long pitch at 10pm is not. For a late enquiry, send a short note that names a clear time for the next step.

We go deeper in our guide to lead response management for Australian service businesses. We also cover keeping messages human in automated lead follow-up that does not feel automated. For a template at every stage, see our automated follow-up sequences.

Hours you should not text, and the rules behind them

Two questions get mixed up here. What is polite? What is legal?

Polite. One Australian provider suggests limiting business texting to roughly 8am to 9pm in the recipient's time zone. Stay well inside that window for anything promotional.

Time zones. If you serve more than one state, schedule by the recipient's local time, not your office clock. Australian guidance on national campaigns is clear that sending on sender time can land messages at intrusive hours. Daylight saving also changes the gap between states for part of the year.

Legal. The Spam Act 2003 covers commercial text messages. The ACMA says commercial messages need consent and generally must carry an unsubscribe option that is actioned within five working days. It also says a message with promotional content is still commercial even when it contains factual or service information. So adding an offer to an appointment reminder makes the whole text commercial.

One more detail. An alphanumeric sender name generally cannot receive replies. If your follow-up depends on a conversation, send from a number people can answer.

Send time does not fix a consent problem. Our plain-English guide to the Spam Act and DNCR for AI outbound shows what to check before you automate anything. For your own situation, check with a legal adviser.

How to find your own best send time

Published windows are a place to start. Your list is not the average list. Here is a clean way to test it.

1. Pick one message type. Do not mix promotions and reminders in one test.
2. Change one thing. Compare mid-morning with late afternoon. One Australian handbook suggests testing 10am against 5pm and waiting at least four hours before you call a winner.
3. Run it for two weeks. One send is noise. Another source recommends comparing the two windows over two weeks.
4. Measure what pays. Track replies, clicks, opt-outs and meetings booked per hundred texts. Opt-outs count as much as replies. They are permanent.
5. Keep the content identical. If the copy changes, you are testing the copy.
6. Repeat by segment. Test past customers, cold enquiries and B2B contacts apart.

One Australian provider puts it plainly: a single perfect send time is a myth. Relevance and value matter more. A well-timed text with nothing useful in it still gets ignored.

You need decent measurement to run any of this. Messaging software with proper email and SMS campaign analytics makes it far easier to compare send times than guessing. If your CRM is HubSpot, GoHighLevel, Pipedrive or Salesforce, the data is usually already there. It just needs reporting by hour and message type.

A sample schedule for a service business running ads

Here is how the pieces fit for a business that gets enquiries from paid ads. Treat it as a hypothesis to test, not a finding.

• New enquiry, any hour inside 8am to 9pm: an instant text that acknowledges the enquiry, sent from a number that can receive replies.
• Enquiry outside those hours: a brief acknowledgement, then a proper follow-up when business hours start.
• No reply after the first day: next touch mid-morning, Tuesday to Thursday.
• Quote sent: a check-in text mid-morning on a weekday, a couple of days later.
• Booked consultation: a reminder about 24 hours before.
• Completed job: a review request between 11am and 2pm.
• Dormant leads: a helpful, low-pressure message mid-morning, spaced out, with a clear way to opt out.

The pattern is simple. Fast for the first reply. Mid-morning for everything after. Early evening as a window to test for consumer-facing offers.

Common questions

What is the best time to send a business text message?

For most Australian businesses, 10am to 12pm on a weekday is the safest start. Use 5pm to 7pm as a second window. Replies to new enquiries are the exception. Send those within minutes. Test both windows on your own list before you commit.

Do I need consent before texting customers?

Yes, for commercial messages. The ACMA says every commercial message needs consent and an unsubscribe option that is honoured within 5 working days. A reply to someone who just enquired is a different case. Check your own situation with a legal adviser.

Is 7am too early to send a text?

For a promotion, yes in most cases. People are commuting or busy. A guide that suggests limiting business texts to about 8am to 9pm sets a sensible boundary. A message the customer expects, such as a delivery or arrival notice, is the exception.

Which day is best to send SMS campaigns?

Weekdays beat weekends in Australian data. Thursday ranks first in one 2026 provider compilation. Saturday campaigns show much higher opt-out rates in the same data. Test Tuesday to Thursday first.

Take the AI Consulting Fit Scorecard to see where your lead follow-up leaks. It takes five minutes.