Business hours, holidays and after-hours routing in 3CX
Set office hours, public holidays and after-hours call handling in 3CX so callers always get the right response.
Every business has a rhythm: phones run hot from 9 to 5, go quiet at lunch and fall silent overnight. But callers do not know your hours, and a phone that rings out into nowhere at 6pm makes you look closed for good. 3CX handles this automatically, so a call at 11am, a call at 8pm and a call on Anzac Day each get the right response.
This guide explains how business hours, holidays and after-hours routing fit together in 3CX, and the gotchas worth knowing before you go live, so callers always reach a person, a message or a sensible fallback rather than dead air.
How 3CX decides what "open" means
3CX works off a concept of Office Hours set against a time zone. At any moment it knows whether you are inside office hours, outside them, or on a defined holiday, and routes calls differently for each. System office hours set the default pattern for the whole phone system, while per-extension, per-queue or per-receptionist hours let parts of the business run their own schedule, so a sales team that works Saturdays can differ from the rest of the office.
Get the time zone right first. If your system thinks it is in UTC when you are in Melbourne, every rule fires at the wrong time, so confirm the PBX time zone matches where your staff answer calls, and watch the changeover during daylight saving.
Setting your business hours
Office hours are defined as time ranges per day. Most businesses set 9:00 to 17:00, Monday to Friday, but you can be as granular as you need.
In the Admin Console, open the office hours settings and confirm the system time zone.
Define open hours for each day. Leave a day blank to mark it closed all day.
If you close for lunch, set two ranges for that day (say 9:00 to 12:30 and 13:30 to 17:00) so midday calls route to your closed flow.
Decide which Digital Receptionist, ring group or call queue answers when open, and where closed calls land.
Think of office hours as the switch, and your inbound rules as the wiring that decides where each call goes once the switch says whether you are open.
Handling public holidays
Holidays are the part most businesses forget until a customer rings on Christmas Day and gets the full open-hours menu. 3CX lets you define dates as holidays, each with its own destination, so those days behave like a special "closed".
- Add each holiday as a date or date range with its own greeting, so callers hear "we are closed for the public holiday" rather than your normal prompts.
- For multi-day breaks like the Christmas-to-New-Year shutdown, set one range covering the whole period.
- Holidays usually override normal office hours for that day.
One honest caveat: Victorian and national public holidays move each year, and some are state-specific. Put a recurring reminder in your calendar to update the list annually, because 3CX will not guess next year's dates.
After-hours and closed-time routing
"Closed" does not have to mean "voicemail". After-hours routing decides what a caller gets at that moment. Common patterns:
Voicemail with email delivery
so overnight messages reach the right inbox. See our voicemail-to-email guide.
A closed-hours Digital Receptionist
that states your hours and offers an emergency option. Our IVR guide covers how to build one.
Forward to a mobile or on-call group
for trades, medical or support businesses that need a human after hours.
A different greeting only
, with the call still ringing a skeleton team.
For anything beyond a simple open/closed split, the Call Flow Designer combines time conditions, holidays and caller input into one automated flow. And for unplanned closes, a staff meeting or an early finish before a long weekend, a manual break or out-of-office override switches to closed routing on demand, then snaps back once cleared.
Testing before you trust it
Routing rules are easy to get subtly wrong, so test them like a customer would.
- Call your main number during open hours and confirm the right team answers.
- Set a holiday for today, or use the manual break, to hear your closed flow without waiting until 6pm.
- Check the lunch gap and the exact minute hours change over, especially around daylight saving.
- Confirm voicemail-to-email lands in the right inbox and is not caught by spam filtering.
If you would rather not wrangle time zones, holiday calendars and call flows, SIP Connect sets this up for Australian businesses every week on our 3CX phone systems. Call us on 1300 747 266 or get a free bill review.
What we see installing this in Melbourne
The single most common miss on Melbourne sites is the time zone. A PBX provisioned by an overseas reseller often comes up in UTC or US Central, and nobody notices until the first AEDT changeover in October sends every "closed" rule an hour adrift. We always confirm Australia/Melbourne on the PBX itself, not just the host VM, and re-test the morning after daylight saving starts and ends.
Holidays are the other one. AU SMEs routinely forget that Melbourne Cup Day, AFL Grand Final Friday and the Queen's Birthday are Victorian-only, so a national template misses them. We build the holiday list against the Victorian government calendar and set a diary reminder for November each year to refresh the following year's dates.
Where we add the most value is the cutover week itself: sitting with reception on day one, listening to the actual after-hours greeting on a mobile from outside the office, and tweaking the lunch split once the team tells us when they really stop answering.
Frequently asked questions
Can different departments have different opening hours in 3CX?
Yes. Alongside the system-wide office hours, you can give individual queues, ring groups, receptionists or extensions their own schedule. A sales line can run Saturday hours while the rest of the office stays Monday to Friday.
Do I have to add public holidays manually every year?
Yes. 3CX does not automatically know Australian or Victorian public holidays, and the dates shift each year. Set a recurring annual reminder to refresh the list, or have us update it as part of your ongoing support.
What happens to a call that comes in exactly as we close?
3CX checks the current time against your office hours at the moment the call arrives, so a call landing one minute after closing follows the closed-hours routing. This is why testing the changeover, and confirming your time zone, matters.
Can we close early without changing the whole schedule?
Yes. Use the manual break or out-of-office override to switch to closed routing on the spot, for example before a long weekend. The system returns to its normal schedule once you clear the override.
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