Picture the noodle shop on the corner of your street, the one you walk past every day. The owner, a lady everyone calls Auntie, keeps one sheet of paper taped to the door. She wrote on it in a thick marker: open 06.00 to 14.00, closed on Mondays. Everybody who walks by reads the same sign, every day. When Auntie has to take her grandchild to the doctor, she picks up the marker, adds "closed tomorrow" at the bottom, and everyone who comes by knows at the same moment.
Now count the doors your own shop has. There is the real front door. There is the door on Google Maps, the door on your Facebook page, the door in your LINE OA chat, and, if you have a website, one more. Each door has its own sign, and every sign has to be rewritten by hand whenever your hours change. Auntie has one sheet of paper, so she rarely slips. Shop owners today have five signs to keep in step.
There is a Thai story doing the rounds this week that made me think about this. When I opened Google Trends for Thailand on 4 November 2026, the phrase "กฎหลังเที่ยงคืน" (roughly, "the rules after midnight") sat among the rising searches of the past 7 days, with Google showing a volume of 100K+. According to a report in Naewna, it is a Viu Original, a horror drama built on the "Rules of Horror" trend, set in a convenience store called Sunny Mart in a quiet suburb, with the first episode released on 28 October 2026 and available only on Viu. I will not say more about the plot. I have not watched it, and I would rather not tell you more than the news report does.
But the title stayed with me, because every real shop has its own rule after midnight, and it is far less spooky. The rule is the opening and closing time that a customer must be able to trust before they leave the house. Late-night places feel it most. Someone deciding at 23.30 whether to go out for dinner relies on the phone in their hand almost completely. If the listing says open until 1 a.m. and the lights at the shop went off at 10 p.m., that customer will remember your shop in a way you would not choose. This article is about getting every sign to say the same thing.
Spend five minutes checking your own opening hours
Before reading further, try a small test that needs no tools at all. Pick up your phone and visit each place where a customer might meet your shop, one at a time. Search your shop name on Google and see which hours appear. Open your Facebook page and read the hours listed there. Open the LINE OA chat and look at the welcome message or the auto-reply, since many shops put their hours there. If you have a website, open the contact page. Finally, walk over and read the sign on the real door.
Write down what you find on one sheet of paper and compare line by line. Do the opening times match? Do the closing times match? Is the weekly day off the same everywhere? Are the address and the phone number one consistent set? And if there is a special day coming up, such as a short day or a closure, does every place know about it yet?
I would guess most shops will find at least one difference, and that is entirely normal. It does not mean you run the shop badly. Each channel was set up at a different time. One was created three years ago, one was created by a customer who wanted to help, and one was set up by a staff member who has since left. Nobody did anything wrong. Nobody was just holding the central sheet of paper.
Fixing each place by hand does work, and I would not argue otherwise
Let me be clear about this. The way most shops handle it today is to log in to each app and edit the hours when they change, and that works. I do not dispute it. If you run a small shop, you hold the phone every day, and the hours change only two or three times a year, then editing by hand is enough. People who do this consistently are looking after their shop with real care.
What I would add is one more layer underneath every channel, like Auntie's single sheet of paper acting as the source. If you keep one page that holds the truth about your hours, you change it there first and then copy the change out to each channel. The work gets lighter, and the mistake of forgetting one place gets much rarer. You do not have to give up any channel to do this.
Why opening hours matter more than almost anything else on your page
A product photo that is not perfect still leaves the customer able to decide. A short description still leaves them able to call and ask. Opening hours are different, because they are the one piece of information a customer uses to make a real journey. They will drive, walk, or order a ride believing that the shop is open. If the hours are wrong, what they lose is the whole trip, and neither a pretty photo nor a rating can pay that back.
I think of opening hours as the first promise a shop makes. Before anyone tastes the food or touches the product, the shop has already said that it will be here, at this time. That promise goes out through five signs at once, and if one of them is out of date, the customer who happens to see that sign meets a promise the shop cannot keep.
Customers who meet this rarely come back to ask why. They simply move on to the next shop in the search results, and a shop that was closed when they were hungry fades out of memory without a sound. You will probably never see these customers in any report, because they never entered one of your systems. They arrived at your door and walked away.
Maps and reviews are part of this picture too. If you would like to see how the evidence customers find on Google Maps differs from what you show on your own site, the article What is Local SEO? A Guide to Ranking Your Thai Business on Google Maps explains how a Maps listing works and where your own pages fit alongside it.
What Google says about regular hours and special hours
I opened Google's guidelines for representing your business on Google and read what they say about hours. The Business hours section says you may specify special hours for particular days, like holidays or special events. A separate Seasonal hours section covers businesses that are open only part of the year. While you are open, you set your regular hours, and you may set special hours for holidays, temporary closures or other events. You can describe the seasonal period in your business description. During the off-season, you mark the business as temporarily closed, then set your regular hours again when you reopen.
What I take from this is that Google already provides a place to say "this day is different", and it lets you keep your normal hours separate from your festival hours. A shop that uses it does not have to overwrite its normal hours and remember to change them back. The trouble I see most in real shops is simpler: nobody remembers to set the special hours in the first place.
I also looked for a stated lead time, meaning how far ahead special hours can be set and how quickly they appear. The pages I read do not give a number, so I will not give you one. My suggestion is to set special hours as soon as you have decided them, then open your own profile a day or two before the date and confirm it shows what you expect.
A close-to-home example: Loy Krathong is a working day, yet many shops change their hours
In 2026, Loy Krathong falls on Tuesday 24 November, as PPTV HD 36 reports. The same article says the day is not an official public holiday, so government offices, schools and most companies run as usual, while many places hold their events in the evening so people can join after work or school.
This is where a shop's hours get complicated. On a day that is a normal working day but a night when people head out, some shops want to stay open longer to catch the crowd walking to the event. Some want to close early so the team can celebrate with their families. Some sit on a road that is closed to traffic and cannot open at all. None of these choices is wrong. They are the owner's decisions to make. The only thing left to do is tell customers what you decided, in the same words, everywhere.
Look at a town with a big event running across the same weeks, for example the Loy Krathong, Candle Burning and Fire Play festival in Sukhothai. Thansettakij reported on 28 October 2026 that it runs from 15 to 24 November 2026 at Sukhothai Historical Park. I did not read the organiser's own programme, so I will not describe the daily events, and anyone planning to travel should check the organiser's announcement again. What I can say is that when a town hosts ten days of events in a row, visitors from elsewhere search for places to eat, drink coffee and stay near the venue. A shop that states its hours clearly and identically on every channel is in a better position than one that visitors must phone first.
One source of truth lets all five signs say the same thing
The idea is simple. Give your shop one page that holds the truth about its hours. It might be a page on your website, a table in a file the owner opens every day, or even a single sheet of paper taped beside the cashier. What matters is that everyone in the shop knows that when this page changes, the real hours have changed, and every other channel follows it.
What goes on this page? I suggest starting with the things customers ask most often. List the opening and closing time for each day of the week and the regular day off. Add any special hours coming up with exact dates, plus your address, phone number and a map link. If you have several branches, give each its own block. If different services run on different hours, for example the dining room opens at 10.00 but delivery starts at 11.00, write them as two separate lines.
Write the page for people and for search engines. For people, use plain text that reads clearly on a phone, not hours that live only inside a poster image where you have to pinch to zoom. For search engines, a website can carry structured data about opening hours behind the page, which I describe in the next section.
Writing hours past midnight so machines can read them
This is the part that connects most directly to our series. A shop that closes after midnight, such as a late-night restaurant, a bar, a convenience store or a hotpot place that shuts at 2 a.m., often wonders what to enter for the closing time, since midnight sits on the border between two days.
I opened Google's Local Business structured data documentation. It uses a property called openingHoursSpecification, which can take several values: dayOfWeek, opens, closes, validFrom and validThrough. The opens and closes values are written as hours and minutes, such as 09:00 or 21:00, and validFrom and validThrough are written as dates in year-month-day form.
The example I found most useful is the one for hours that run past midnight. The documentation shows a Saturday that opens at 18:00 and closes at 03:00, using a single entry, which means the closing time can be written as the number for the next morning without splitting it in two. For a day when the business is closed, the example sets both opening and closing time to 00:00. If a shop is open around the clock, the example uses an opening time of 00:00 and a closing time of 23:59, and the documentation does not mention a value of 24:00.
For seasonal or festival closures, the same documentation says there is no separate property for holidays. You use validFrom and validThrough as the start and end dates of the closure. Its example is a closure over the year-end break, with both dates set and the times set to 00:00. If you leave out these two values, the hours apply all year round.
Let me be honest about the limits. This is a job for whoever builds your website, and you do not need to write code yourself. Google's documentation explains how to write the data. It does not promise how the result will be displayed, and the final display is Google's decision. What I am confident about is that once your hours are stored in a tidy, consistent form on your own page, the person who builds your site and other systems can pick them up and reuse them with far less effort.
If you want to see what else structured data can do for a small business website, the guide Schema Markup: The Must-Have Secret Weapon for SME Websites walks through it in plain language.
Your address, phone number and shop name need to match as well
Hours are the star of this article, but three other details belong on the same page. Write your shop name the same way everywhere, spell your address the same way, and use one phone number. A shop that moved branches and forgot the old number on its page, or changed the sign on the building and still uses the old name on Google, will run into the same trouble as mismatched hours. Customers go to the wrong place, or they call and nobody answers.
When I help owners collect information before building a site, I ask them to write all the basics on one sheet: the name, the address, the hours, the phone numbers and a photo of the front of the shop. If you have never put those in one place, that sheet is a good starting point.
Questions shop owners often ask me
A common one is: "My shop only has a Facebook page and a LINE OA, and customers can just call. Why make it complicated?" My answer is that calling is a lovely way to reach a shop, and it shows the customer is interested. Still, every call that asks about opening time is a call the owner has to stop work to answer, usually when the shop is busiest. If the hours are clear enough, there will be fewer of those calls, and you will have more time for the people standing at your counter.
Another is: "With so many channels, isn't there more risk that I forget to update one?" I agree, which is exactly why there should be one source. If each channel is its own source, the risk grows. If each channel follows one page, the update becomes a routine you can memorize: change the page, then go through Google, LINE OA, Facebook and the sign on the door in that order.
And a third: "What if I change the hours and customers still see the old ones?" That does happen. Because I could not find a lead time in the pages I read, I suggest you set special hours as soon as you decide them, and then check your own profile a day or two before the date.
Why starting this habit now pays off more than you might expect
The end of the year is when shops change their hours most often. Loy Krathong comes first, then the long holidays at year end. Some shops open longer for office parties, and others close for several days to let the team rest. If you build the habit with Loy Krathong, which falls on Tuesday 24 November this year, you can repeat it at year end almost automatically, and next year you can reuse the same table and change only the dates.
There is a second benefit, and it is the people in your shop. When the person opening up in the morning knows where the true hours live, everyone answers customers the same way, even when the owner is away. When staff give different answers about the hours, the cause is usually that there is nowhere to look, and not that anyone is careless.
The real cases I could find, and what I could not
I tried to find a shop that shared verifiable numbers on what happens to sales once opening hours match across every channel. I did not find a source that reports such figures in a way anyone can check, so I will not offer a number.
What I can point to are the two Google pages I opened: the guidelines page, which has the section on holiday and seasonal hours, and the Local Business structured-data page, which uses openingHoursSpecification and gives examples for hours past midnight and seasonal closures. These are working manuals a shop can apply, and they matter more here than a story would. Sunny Mart in the series is a fictional store, so I use it only as a memorable name and never as evidence.
A six-step plan for next week
Write your real opening and closing times for every day, plus your address and phone number, on one sheet of paper. Call it the truth page.
Open Google, Facebook, LINE OA, your website if you have one, and the sign on your door, and note every difference on the truth page.
Fix every channel so it matches the truth page, starting with Google, since new customers often meet your shop there first.
Set special hours for 24 November and for any year-end days you have already decided, kept separate from your regular hours.
Agree with your team who updates the truth page, and tell everyone who answers customers whenever it changes.
Put a reminder in your calendar once a month to compare every channel with the truth page again. It takes less than ten minutes.
How to tell it is working
The easiest measure needs no software. Count how many times a week customers message to ask whether you are open today or how late you stay. Keep a tally in a small notebook by the counter, or scroll back through your chats. Record the number before you begin and again four weeks after you finish. If it falls, customers are finding the answer themselves on your channels.
A second measure is the number of customers who arrive and find the shop closed. That one is harder to count, but if a member of staff sees someone walk up and try the door, make a mark for that too. The figure should shrink as everything lines up.
If you want your hours to live on a page you control
When the source of truth lives on your own website, you gain two things. One edit can update every related page on the site. And the page is yours, so you do not wait for a platform to review a change. If you want to talk through which kind of business website suits your shop, with an hours page, a contact page and a map that your own team can update, take a look at the website packages from TumWebSME, which set out the scope of work and starting prices.
If your shop already chats with customers on LINE, the article What is LINE OA? Why you need it with a business website explains how the two work together. And if a Facebook page is still your main channel, Is a Facebook Page Enough? lays out the structural risks of relying on it alone.
Back to the sign on the door
Auntie has never read a Google document and has never heard of structured data. She does know the one principle that everything in this article rests on: the sign on the door has to tell the truth, and it has to change the moment the truth changes. These days a shop has more than one door, so it needs one central sheet of paper that every sign copies.
If you would like to tell us how many versions of your hours your shop has today, and which channel they are stuck on, or you want help working out where your truth page should live, get in touch. Tell us a little about your shop and we will think it through together.
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