Dynamic DOOH is a screen ad that changes on its own when something in the real world changes. The hour turns, the rain starts, the game ends, the store closes. Because the ad on a digital screen is a file and not a printed poster, it can respond. A coffee shop can show breakfast at 7am and iced drinks at 3pm. A hardware store can show umbrellas when it rains and fans when it is hot.
This guide explains the three main ways that happens: dayparting, weather, and other triggers. It sits inside the wider topic of digital out of home advertising, which covers what DOOH is and where the screens are. Here the question is narrower: how do you make the ad on those screens fit the moment?
What "dynamic" means on a screen
A static ad says the same thing all the time. A dynamic ad has more than one version, plus a rule for which version plays when.
That is the whole idea. Two parts:
- Versions. Two or more cuts of the ad. Morning and evening. Sunny and rainy. Open and closed.
- A rule. A simple "if this, then show that." If it is before 11am, show the breakfast version. If it is raining within a mile of the screen, show the umbrella version.
The rule can be as simple as a schedule, or it can read a live data feed, such as a weather service. Either way, the screen picks the version, not a person.
Dynamic creative is possible because of how digital screens are sold. When screen time is bought through software, impression by impression, each play is a small decision. That decision can take the time, the place, and the conditions into account. The buying side of that is covered in programmatic DOOH explained.
Dayparting: the ad that knows the time
Dayparting means splitting the day into parts and deciding what runs in each one. The word comes from TV and radio, where a morning show and a late-night show sell to different audiences. On a screen, it can mean two things.
Running only in certain hours. You pick the hours you want the ad to play, and it stays off the rest of the time. A lunch spot does not need to pay for screens at 2am. A bar does not need the morning commute.
Running a different version in each part of the day. The same screen shows a different message depending on the hour. Breakfast in the morning, lunch at noon, a happy hour offer after 5pm.
Here is how a simple dayparted plan can look for a neighborhood cafe:
| Part of the day | Hours (example) | Who is near the screens | What the ad says |
|---|---|---|---|
| Morning | 6am to 10am | Commuters, school runs | "Coffee and a hot breakfast, 2 minutes ahead" |
| Midday | 11am to 2pm | Office workers, shoppers | "Lunch in 10 minutes, order ahead" |
| Afternoon | 2pm to 5pm | Students, people on errands | "Iced drinks and a pastry" |
| Evening | 5pm to close | People heading home | "Grab tomorrow's beans on the way" |
The hours are examples, not rules. The right split depends on when your customers walk by and when you can serve them.
When dayparting is worth it
- Your offer changes by the hour. Meals, happy hours, appointment slots, late-night delivery.
- You can only respond some of the time. If no one answers the phone after 6pm, an ad that says "call now" at 9pm wastes money.
- The people near the screen change. A screen near a train station sees commuters at 8am and a very different crowd at 8pm.
When it is not
If your business sells the same thing all day and anyone can act on it any time, splitting the day adds work without adding much. One good ad, played in the hours you are open, is often enough.
Weather: the ad that reads the sky
Weather triggers switch the ad based on current conditions near the screen. The system checks a weather data feed and plays the version that matches.
Common rules look like this:
- Rain: umbrellas, rideshare, delivery, indoor activities, car washes "after the storm."
- Heat: cold drinks, ice cream, fans, air conditioning repair, pools.
- Cold: hot drinks, soup, coats, heating repair, "warm up inside."
- Snow: shovels, tire shops, delivery, "we are open."
The logic is simple. People think about the weather they are standing in. An ad that matches it feels relevant. An ad that ignores it can feel off: a sunscreen ad in a downpour, or a patio offer in a snowstorm.
Make the rule match the business
A weather rule only helps if the weather actually changes what people buy from you. A plumber gains from a cold snap, because pipes freeze. A florist probably does not care if it is 70 or 75 degrees. Before you add a weather version, ask: does this condition change demand for what I sell, today, near this screen? If the answer is no, skip it.
Other triggers: events, stock, and the clock
Beyond time and weather, a screen ad can respond to almost any signal someone can turn into data. Some common ones:
- Countdowns. "3 days until the sale." The number updates on its own.
- Live events. A sports bar shows one message when the local team wins and another when it loses.
- Opening hours. The ad plays only while the store is open, or switches to "open tomorrow at 9" after closing.
- Stock or prices. A shop pulls its current price or "only 4 left" from its own system.
- Day of the week. A weekend brunch ad that only runs Saturday and Sunday.
Each one needs a data source and a rule. The more complex the trigger, the more there is to set up and the more there is to go wrong. A broken feed can leave a screen showing yesterday's score or the wrong price. Start with the simple ones.
Dynamic DOOH compared
| Approach | What changes the ad | Setup effort | Best for |
|---|---|---|---|
| Static (one version) | Nothing | Lowest | One clear offer that is true all day |
| Scheduled hours | The clock (on or off) | Low | Businesses with set opening hours |
| Dayparted versions | The clock (which version) | Low to medium | Offers that change across the day |
| Weather triggers | Live weather data near the screen | Medium | Products where weather changes demand |
| Event or data triggers | Scores, stock, prices, countdowns | Higher | Brands with a live feed and a reason to use it |
The table runs from simple to complex. Most small advertisers get most of the value from the first three rows.
How to plan a dynamic DOOH campaign
- Write the one thing you want people to do. Visit, call, scan, order. The versions change the context, not the goal.
- Find the moment that matters. Is it the hour, the weather, or an event? Pick one to start.
- Make the versions. Keep the same look, logo, and end card across all of them. Only the line, image, or offer should change. The creative rules that apply to every version are in what makes a great DOOH ad.
- Fit each version to each screen shape. Every version needs the same sizes: wide for TVs, tall or square for street panels. The sizes are listed in DOOH creative specs and aspect ratios.
- Set a fallback. If the data feed fails, which version plays? Pick a safe default that is always true.
- Decide how you will know it worked. Compare results by hour or by condition, not just in total. A QR code or a short link on every version helps.
- Review after a week or two. Drop the versions that are not pulling their weight. Keep the ones that are.
Common mistakes
- Too many versions. Ten versions split your budget ten ways, and each one gets too few plays to learn from. Two or three is plenty to start.
- Versions that look like different brands. If the morning ad and the evening ad look unrelated, people do not connect them. Keep the frame the same.
- Triggers that do not change behavior. A weather rule for a product that sells the same in sun and rain is complexity for nothing.
- Promising what you cannot deliver. "Open now" on a screen after you have closed is worse than no ad.
- No fallback. Data feeds break. Always have a default version.
How this works on Glo
On Glo OOH you do not have to build a table of rules to get the benefit of timing. Glo picks the screens for you based on time of day and what is bringing in calls and visits. You can still change anything, and every screen shows up in your dashboard with its own spend, plays, and results.
You set the area, from one block to a whole city, and can see the screens near you before you spend anything. Your ad can be one you already have. A Reel or TikTok works, or Glo Spark makes three free concepts. If you want a morning cut and an evening cut, make two short versions with the same end card.
Glo is self-serve advertising for every screen, screens first. Plans start from $17/day on Glo pricing, with no contract. You are charged only on days the ad runs, and you can pause anytime. Streaming TV at home is an add-on through Glo commercials, not a requirement. For the step-by-step, see launch a campaign in 60 seconds.
Questions people ask
What is dynamic DOOH?
Dynamic DOOH is a digital screen ad that changes automatically when something changes, such as the time of day, the weather, or a live event. You make two or more versions of the ad and set a simple rule for which one plays when.
What is dayparting in advertising?
Dayparting means splitting the day into parts, such as morning, midday, and evening, and choosing what runs in each part. You can run the ad only in certain hours, or run a different version in each part of the day.
How do weather-triggered ads work?
The system checks a weather data feed for the area around the screen. When the conditions match a rule you set, such as rain or heat, it plays the version made for that condition. When they do not, it plays the default version.
Is dynamic creative worth it for a small business?
It can be, if your offer or your hours change during the day. Simple timing, like running only while you are open, gives most of the benefit with little effort. Complex triggers are usually worth it only when the condition clearly changes what people buy from you.
How many versions of an ad should I make?
Start with two or three. More versions split your budget and make it harder to tell what is working. Add more only once you know which moment matters most.
Do I need a data feed to run dynamic DOOH?
Not for timing. Hours and days of the week only need a schedule. Weather, scores, stock, and prices need a live data source, plus a fallback version in case the feed fails.