When is the best time to say affirmations?
The best time to say affirmations is a fixed time tied to something you already do each day. For most people that is the morning, before the phone. Value-affirmation studies had people affirm shortly before a stressful task, so a line kept back for the hard moments helps too, and a short practice at bedtime can help you wind down.
The best time to say affirmations is the time you will keep. For most people, that is the morning, before the phone.
Studies of affirming your values ran the exercise shortly before something stressful, and the research on habits favours a fixed moment tied to something you already do. The morning suits both.
Is there a best time of day to say affirmations?
The best moment to say affirmations is just before the part of the day that asks the most of you.
In the classic experiments, people spent a few minutes on a value that mattered to them and then faced something hard: a speech in front of strangers, an exam, unwelcome health news. The affirmation came first and the stress came after.
A 2025 review in American Psychologist pooled dozens of these studies. People who affirmed their values saw themselves a little more kindly and felt a little less anxious and defensive, and the benefits held over time.
Why do so many people choose the morning?
The morning works because it comes before everything else the day will ask of you, and because it is the easiest time to build a habit around.
A morning practice puts the words ahead of the whole day: the inbox, the commute, the conversation you have been putting off.
Mornings are also predictable. Most people wake, wash and put the kettle on in roughly the same order every day, and a habit forms around a cue like that. Phillippa Lally and colleagues at University College London followed people building a new daily habit tied to a fixed point in their day, such as after breakfast. For a typical person the new behaviour became automatic in about two months, though some took far less time and some far more.
The phone is what gets in the way. For many people the first thing they hold is a screen, and once the feed is open the morning belongs to it. There are practical ways round that in how to stop checking your phone first thing in the morning.
Do affirmations before bed work?
Affirmations before bed can be a calm way to close the day.
A short ritual before sleep helps people settle. In a 2018 sleep-lab study led by Michael Scullin, people who spent five minutes before bed writing a to-do list for the coming days fell asleep faster than people who wrote about tasks they had already finished. The ritual in that study was a written list: a few quiet minutes that let the day be put down.
If the morning is when you set your intention, the evening is when you can let the day be finished.
What about right before something stressful?
Right before something stressful is the moment the research tested most directly, and it is where affirmations have the clearest support.
In a 2005 study in Psychological Science, David Creswell and colleagues asked people to reflect on a value they cared about and then give a speech and do mental arithmetic in front of an unsmiling panel. People who had affirmed their values first showed a smaller rise in cortisol, a stress hormone, than those who had not.
A 2009 study in Health Psychology, led by David Sherman, took the idea out of the lab. Students who wrote about their values before a big exam did not show the rise in adrenaline that classmates who wrote about something else did.
Keep one affirmation in reserve for the hard part of the day. Two quiet minutes before an interview, a difficult call or a hospital appointment follows the idea the stress studies tested. A line from the morning, brought to mind again in the corridor, is enough.
How do you make the time stick?
The surest way to make an affirmation habit stick is to say your affirmations at the same point in a routine you already keep, and to keep the practice short enough that a bad morning does not break it.
Pick the cue first and the words second: after the kettle goes on, before you pick up the phone, when you sit on the edge of the bed. Psychologists call a plan like this an implementation intention, when this happens, I will do that. A review by Peter Gollwitzer and Paschal Sheeran found that plans of this kind made people markedly more likely to follow through.
Keep it short. Two minutes you will do on a tired Tuesday will carry you further than twenty you manage twice. If you miss a morning, start again the next one: in Lally's study, missing the odd day did not undo the habit.
Add a second time once the first is steady.
Dewlight's morning and evening reminders
Dewlight is built around a fixed time. You set a morning reminder and an evening reminder, each at its own hour, and keep one or both. The app's palette follows the day too: warm gold in the morning, lavender in the evening.
For mornings that start on the phone, Practise to unlock keeps the apps you choose closed until you have done the day's practice.
A session takes about two minutes, drawn from more than 2,000 research-grounded affirmations written around the values you choose. Say the lines at the mirror, read them on a card, or listen in your own voice, and keep the one that landed for the hard part of the day.
The best time is the one you come back to. Try Dewlight for a week.