Observe without waking
Record moments that happen naturally. Keep the normal light–dark routine and avoid bright lights, handling or waking your hamster just to collect a record. A quiet gap in your journal may simply mean you were asleep.
Discover the rhythm you rarely get to see. Record tiny moments, follow the wheel, and turn a quiet night into a beautiful observation.
No account required · Saved on this browserChoose a night, then log only what you observed. One night runs from noon to noon the next day.
Select a cell to inspect an hour of observations.
Local time · 12:00 → 12:00 next day · Each cell is one hour. An environment note marks a change; it does not establish a cause.
The last 30 nights, each with its own signature.
Back up regularly. Clearing browser storage or changing devices can remove access to local records. Restore merges records with this browser’s journal.Record moments that happen naturally. Keep the normal light–dark routine and avoid bright lights, handling or waking your hamster just to collect a record. A quiet gap in your journal may simply mean you were asleep.
Log wheel running alongside digging, exploring and foraging. This journal does not set exercise targets, rank activity or infer distance from minutes. Compare your own observations while considering how long you were watching.
More observations can make a pattern easier to see, but manual notes are not continuous monitoring. A change after a new wheel or bedding does not prove that change caused it. Bring dated observations to a veterinary consultation when useful.
No. Every record is entered by you. No camera, microphone or sensor is connected. The demonstration uses clearly labelled fictional records.
It keeps evening and the following morning on a single row. A 02:00 observation belongs to the date before that morning. The date selector always identifies the starting day.
Journal data stays in this browser’s local storage and is not sent by this tool to a journal server. Downloads stay on your device. Blogger, Google and advertising services may process usage data and cookies under their own policies. There is no automatic cloud sync.
No. The charts describe recorded observations only. If your hamster seems unwell, seek veterinary advice instead of waiting for more chart data.
Hamster Night Shift is an independent observation notebook for curious hamster keepers. It turns manually recorded moments into readable night signatures and activity maps. No veterinary affiliation or research-grade measurement is claimed.