How to Sign “All Day” in ASL

The short answer

In American Sign Language (ASL), “all day” is commonly shown as one sign that pictures the sun crossing the sky. Your non-dominant forearm lies flat in front of you as the horizon. Your dominant hand starts low and out to your dominant side, like sunrise, then sweeps up and across in a wide arc and comes down near your non-dominant elbow, like sunset. The arc covering the whole sky is what turns a plain “day” into “all day.”

Step by step

• 1. Hold your non-dominant arm horizontally in front of your body, at roughly waist-to-chest height, palm facing down. This forearm is the horizon.
• 2. Extend your dominant arm out to your dominant side, with the hand starting low, near the level of the horizon arm. This is sunrise.
• 3. Sweep the dominant hand up and across your body in a smooth, wide arc, the path the sun travels.
• 4. Finish with the dominant hand or forearm coming down on or near the elbow of your horizon arm. This is sunset.
• 5. Keep the motion continuous. A broken or hesitant movement can make the sun’s path harder to follow.

Handshape varies. Many references show a flat hand with the fingers together. Some signers keep the index finger extended, as in the basic sign for DAY. Palm direction during the sweep also differs from signer to signer and region to region, so treat these details as common forms rather than the only correct version.

Ambiguities that change the meaning

• “Day” versus “all day”: the basic DAY sign uses a short, local movement. The dominant elbow rests on the back of the horizon hand, and the index finger arcs down toward the horizon arm. ALL-DAY replaces that with the full sunrise-to-sunset sweep. If your arc is small, a viewer may read it as just “day.”
• “Every day” is a different idea: it means something happens daily, not that it lasts the whole day. ASL uses a separate sign for it, so don’t substitute the sweeping arc.
• English slang: in phrases like “I could do this all day,” “all day” means “endlessly” or “easily.” ASL does not have to follow the English wording word for word. A fluent signer may express that meaning through facial expression, repetition or a different construction. The sun-arc sign is the clear choice when you literally mean “for the whole day.”

Facial expression and pacing carry meaning in ASL. These cues are called non-manual markers. Slowing the sweep and adding an expression of strain or boredom can show that the day felt long. A neutral face and an ordinary pace simply state the duration.

Making the sign readable on a video call

ALL-DAY is one of the wider signs, because the dominant hand travels from one side of your body to the other and rises above the horizon arm. On camera, a few setup choices decide whether the other person sees the whole arc or only part of it.

• Framing: sit far enough back that your full signing space shows in the frame, from just above your head to about your waist and out past both elbows. If the sunrise end of the sweep leaves the frame, the sign can look like DAY or an unclear gesture.
• Self-view mirroring: many call apps mirror your own preview by default, while other participants see the unmirrored image. Your movement may appear to go the “wrong” way in your preview even though it reaches others correctly. Don’t reverse your sign to fix the preview.
• Lighting: light your face and hands from the front so the handshape and your facial expression stay visible. A bright window behind you can darken your hands.
• Physical background: a plain, uncluttered surface that contrasts with your skin and clothing makes the moving hand easier to track.
• Virtual backgrounds and blur: these call effects work by separating you from the scene in software. Fast, wide arm movements can be partly erased or smeared at the edges. If you rely on a virtual background or background blur, test the full sweep before an important call, or turn the effect off and use a real plain background instead.
• Camera access is not the same as a usable picture: the browser or operating system granting camera permission only means the app can open the camera. Check the preview to confirm the video is live, and watch for choppy motion, which can make a quick sweep hard to read on a weak connection.

Checking that you got it right

• Record yourself signing ALL-DAY with your camera, then watch the clip back. Confirm that the arc starts low on your dominant side, passes clearly above the horizon arm and ends near your non-dominant elbow.
• Compare your recording with a demonstration video from a reputable ASL dictionary or course, ideally one featuring Deaf signers.
• Where possible, ask a fluent signer to watch. They can confirm the version is natural and point out any regional preference where you live.

Limits of this guide

This explanation is based on commonly taught descriptions of the sign, not on a cited dictionary entry or a video demonstration supplied for this article. Written descriptions cannot fully convey movement, speed or facial expression, and ASL has regional and community variation. For anything important, such as teaching, interpreting or formal communication, confirm the sign with a qualified ASL instructor or a Deaf community member.