Sunrise and Sunset Light Schedules That Actually Feel Natural
Sunrise and sunset schedules turn lights on or off relative to the sun - for example, porch glow at sunset, kitchen assist at sunrise - without rewriting clock times every month. OneGlow supports sunrise/sunset rules with minute offsets and uses location only to compute sun times.
Fixed clocks fight the sky. Sun offsets track seasons automatically.
Why sun-based beats fixed clocks
In June, 7:30 p.m. is bright. In December, it is night. A single “on at 7:30” rule is wrong half the year. Sunset −20 minutes stays roughly “when the room starts to feel dim,” whether daylight saving flipped or the solstice moved the goalposts.
You do not need a full circadian research stack. You need fewer manual overrides.
How OneGlow sun schedules work (conceptually)
- You set a location (city or coordinates) used for sun math
- You attach a rule to a light or - better - a group
- You choose sunrise or sunset plus a minute offset
- At the computed local time, power (and your preferred look) applies across members
Offsets are the whole game. Exact sunset is often later than when humans want lamps.
Offset recipes
| Goal | Rule | Starting offset |
|---|---|---|
| Evening ambient | On at sunset | −15 to −30 min |
| Early winter settle | On at sunset | −30 to −45 min |
| Late night shutoff | Off relative to sunset | +4 to +5 hours (tune to lifestyle) |
| Morning gentle (dark winters) | On at sunrise | −10 min weekdays |
| Utility outdoors / coop style | On sunrise, off sunset | 0 / 0 with utility white |
| Path lights only after evening | On sunset −20, dim later by clock | Combine sun + clock |
Worked evening stack
| Step | Rule |
|---|---|
| 1 | Living group on at sunset −25 min, warm 45% |
| 2 | Optional cloudy assist for midday gloom (separate feature) |
| 3 | Whole home off at 11:30 p.m. clock |
| 4 | Hall path 10% from 11:31 p.m. if you hate black hallways |
Sun handles the seasonal front door. Clock handles “we are asleep now.”
Pair with groups and scenes
Attach sun schedules to groups (front of house, living ambient) so mixed brands respond together. BLE strips, Wi-Fi coves, and multipack bulbs can share one sunset on.
Scenes still matter: the schedule can turn the group on into a known Evening look instead of yesterday’s party leftover - depending on how you configure the target state. Prefer a boring warm default for automated ons.
Soft light vs natural sky
Sun schedules decide when. Soft on/off and color journeys decide how it feels when you are present and adjusting by hand. Automated power events often use direct on/off for reliability. If you want a slow manual wind-down later, trigger a scene or journey yourself after the automated on.
Privacy note on city/location
OneGlow’s product stance is privacy-first. City or coordinates for sun math are a narrow, explained use - not a license to build a lifestyle ad graph from your lighting. Prefer when-in-use style permission flows tied to enabling the feature, not silent always-on tracking narratives.
Tuning through the year
| Season | What to watch | Adjustment |
|---|---|---|
| Deep winter | Rooms dark by mid-afternoon | Larger negative sunset offset; optional clock floor at 3:30 p.m. |
| Shoulder seasons | Bright evenings | Smaller offset; trust sunset more |
| High summer | Late sun | Keep sunset rule; night off still by clock |
| Travel / move | Wrong sun times | Update location |
Revisit offsets twice a year. Five minutes of tuning beats months of “why is this early?”
Common mistakes
- Only a fixed clock for evening living - seasons will punish you
- Exact sunset with no offset - rooms already feel dim
- Sun on without night off - kitchen stays bright until someone notices at 1 a.m.
- Rules on twelve individuals - migrate to groups
- Saturated RGB on automated sunset - use warm utility whites for defaults
- Ignoring offline members - fix LAN/BLE before blaming the sun
Bottom line
Sunrise and sunset schedules are the simplest way to make multi-brand lighting feel seasonal without monthly chore work. OneGlow computes sun times, applies offsets to groups, and keeps the rest of your universal control - master, scenes, cloudy assist, Shortcuts - in the same iPhone app.
Set living on at sunset −25 minutes this week, keep a hard night off, and stop rewriting 7:30 p.m. every October.
FAQ
How accurate is sunrise math?
Good to roughly a minute or two - more than enough for household lighting.
Does travel break schedules?
Update city/location if you relocate; sun times are place-based.
Can I mix sun rules with cloudy automation?
Yes. Sun covers dusk. Weather assist covers midday gloom. Night off still wants a clock.
Do I need a hub?
No for OneGlow’s phone-to-light path.
Sunrise on every day?
Optional. Many people only want sunset automation plus weekday morning clocks.