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Alexa Routine Stopped Working at Sunset: Common Issues & Solutions

ByAlex Turner

The most common reason a sunset routine fails is a stale device location. Alexa calculates sunset using the address stored on the specific Echo that owns the routine, not your current physical position. If that address is outdated, the calculated time can be off by 15 to 45 minutes, or the routine may not fire at all.

Open the Alexa app > Routines > tap your sunset routine. In the Schedule section, Alexa shows the exact calculated sunset time. Compare that to your real local sunset from weather.gov or a trusted weather site. A difference of more than 2 minutes means your device location is misconfigured.

Five Quick Checks to Isolate the Problem

Check What to Do Pass / Fail
Calculated sunset time Compare the app’s displayed sunset time to your actual local sunset Match within 2 min = pass
Echo time zone Settings > Device Settings > your Echo > Time Zone. Must match your current time zone and DST rules Correct zone = pass
Trigger type Is it “Sunset” or a fixed time like “6:00 PM”? A custom time means sunset calculation is never involved Sunset trigger = pass
Activity log Alexa app > More > Activity > filter by the routine name. Look for “Skipped” or “Failed to execute” No errors = pass
Device reachability Say “Alexa, turn on [device name]” to confirm the controlled device responds to manual commands Works manually = pass

If any check fails, you’ve identified the layer to fix. The most common fail by far is the first row — mismatched sunset time due to a stale address.

The #1 Failure Mode: Stale Device Location (Detect It Early)

When you set up an Echo, Alexa stores the address you entered at that time. That address lives on the device, not on your Amazon account. If you ever change homes, update your default shipping address, use a portable Echo in an RV, or run the same account at a second property, the Echo’s stored location can become frozen at the old address.

How to detect it early: Check the routine’s calculated sunset time once per day for three days after a change of address (e.g., after a move or a trip). If the displayed time doesn’t shift by at least 30 seconds from day to day despite actual sunset moving 1–2 minutes per day, the calculation is stale. A flatline across three days is a dead giveaway.

Real example: A user with an Echo Dot in a mountain cabin set up the routine at home (city address). The cabin is 120 miles west with a later sunset. The routine fired at the city’s sunset time, leaving the cabin dark for 18 minutes. The fix was updating the Dot’s Device Location — not changing the account-level address, but the address under that specific Echo’s settings.

Another Common Pattern: Sporadic Skipping After Server Updates

Symptom: Your sunset routine works reliably for weeks, then suddenly skips firing for two or three days in a row. All device locations and time zones are correct. The activity log shows no errors.

Likely cause: Amazon pushed a server-side update that recalculated sunset triggers. User forums have documented this pattern after routine engine updates or Alexa software releases. The routine’s cached trigger time becomes misaligned with the new server logic.

Safer next move: Do not re-enter the same address again — that rarely helps. Instead, delete the routine and recreate it from scratch. This forces the routine to use the current server-side sunset engine. If that fails after a week, file a support ticket with Amazon and specifically ask them to “verify the sunset calculation for your device’s address.”

Operator’s Troubleshooting Flow

Preparation

Before starting, have your Alexa app open and know which Echo owns the routine. Check the routine’s schedule page for the calculated sunset time. Write it down.

Early Checkpoint – Validate the Sunset Time

Compare the app’s sunset time to your real local sunset from an independent source (weather.gov, SunriseSunset.io, or your phone’s weather app).

  • If the difference exceeds 2 minutes: Proceed to the location fix below.
  • If the difference is within 2 minutes: The routine’s schedule is likely correct. Your next action shifts to testing device reachability — the device itself may be offline, unresponsive, or assigned to a different Echo. Skip the location steps and go directly to checking the controlled device’s native app and Wi-Fi connection.

Ordered Steps to Correct Location

1. Navigate to Device Location — Alexa app > Devices > Echo & Alexa > select your Echo > scroll to Device Location.

2. Enter your full physical address — Street, city, state, ZIP. Wait 10–15 seconds for geocoding. A map pin should appear near your actual location. If the pin is off-center: Try using a nearby intersection or business name. Rural addresses often map to ZIP code centroids, which can shift sunset by 2–5 minutes.

3. Force a fresh calculation — Save the address. Say “Alexa, update my location” or reboot the Echo (unplug 30 seconds). This triggers a server-side re-query.

4. Verify the new sunset time — Go back to the routine schedule. The calculated time should now match your real sunset within 1–2 minutes. If it doesn’t, repeat steps 1–3 with a more precise address.

5. Test the routine — Tap “Run Now” in the routine. Then observe the actual sunset evening. If it fires within 5 minutes of true sunset for three consecutive nights, the fix is stable.

Likely Causes If Problem Persists

  • The Echo reverted to a cached address after an Alexa software update. Re-enter the address again.
  • The routine’s trigger is set to a custom time, not “Sunset.” Change in Schedule.
  • The target device is offline or grouped to a different Echo. Check device settings and groups.
  • You’re using a VPN or changing IP addresses — Alexa may sometimes use IP geolocation instead of stored address. Disable the VPN during setup.

Friction Points to Watch

  • Portable Echos (Echo Dot, Echo Flex) carried between homes: location must be updated each time.
  • Multiple Echos in same household: only the Echo that owns the routine matters. Verify you’re correcting the right device.
  • Zigbee/Z-Wave hubs: if the hub (Hubitat, SmartThings) triggers the routine, the hub’s sunset calculation may conflict. Check hub logs.
  • Device groups: if the target device is assigned to a group owned by a different Echo, the routine may skip. Open the device’s settings and confirm it belongs to the correct group.

Escalation Signal

If after trying all steps the routine still fails sporadically (works some days, skips others), this is likely an Amazon server‑side bug. File a support ticket and ask them to verify the sunset calculation for your device’s address. Deleting and recreating the routine from scratch sometimes resets the trigger.

If the routine never fires even after location correction and device reachability is confirmed, the issue may be a corrupted routine entry. Create a brand new sunset routine with the same actions and delete the old one.

Success Check

Your routine fires within 5 minutes of true sunset for three consecutive evenings without manual intervention.

When Standard Fixes Fail: Edge Cases

Smart hub triggers the routine (Hubitat, Home Assistant, SmartThings)

The hub calculates its own sunset time using its weather integration. The communication path is: hub → Alexa → device. Check the hub’s logs for the actual sunset time it used. If the hub’s sunset matches reality but the device doesn’t fire, add a 30-second delay in the hub’s automation before sending the Alexa command. The hub and Alexa sometimes race during routine execution windows.

The routine runs but the device doesn’t respond

This is a device-reachability issue, not a sunset trigger issue. Test with “Alexa, turn on [device name].” If that fails, check the device’s native app (Philips Hue, Kasa, Wemo). The most common cause is a router change that reassigned the device’s IP address or switched it from 2.4 GHz to 5 GHz. If the device uses a hub (Zigbee / Z-Wave), confirm the hub is online and the device is paired.

Daylight saving time transition

If your Echo’s time zone is set to Arizona or another region that doesn’t observe DST, but you live in a DST-observing location, sunset will be off for half the year. Double-check the time zone field under Device Settings, not the general account time zone.

Sunset Trigger vs. Custom Time vs. Custom Offset

Trigger Type Reliability Best Fit
Sunset Good when device location is accurate; drifts if address changes Stationary homes with one occupied address
Custom time (e.g., 6:30 PM) High — no dependency on location or weather Frequent travelers, portable Echos, second homes
Custom offset (e.g., 30 min before sunset) Same reliability as sunset, with proportional drift Users who want dynamic timing and keep location up to date

Switching to a custom time: If you move more than once per year, or use a portable Echo, switch to a fixed time. You’ll need to adjust it twice a year (equinoxes). Set a calendar reminder to update routines in March and September. The trade-off is reliability: a custom time never fails due to stale location data.

Sticking with sunset: If you have a smart hub that calculates sunset locally (Home Assistant with a weather integration, Hubitat with a weather module), let the hub be the trigger. Use a virtual switch to fire the Alexa routine. The hub’s local calculation is not affected by Amazon’s address cache.

FAQ

Q: Why does my sunset routine fail after a power outage?

A: The Echo may reboot with a stale cached location. Say “Alexa, update my location” or re-enter the address under Device Location to force a fresh geocoding query.

Q: The activity log says “Routine was skipped due to no eligible device.” What does that mean?

A: The Echo that holds the sunset trigger is not in the same device group as the target device, or the target device is registered to a different Amazon household. Open the target device’s settings and confirm it is assigned to the same Echo group.

Q: Can I use a third-party service for better sunset accuracy?

A: Yes — IFTTT, Hubitat, or Home Assistant can use astronomical data to fire Alexa routines. That approach requires additional hardware or a paid IFTTT subscription. For most users, fixing the Echo’s device location is faster and free.

Q: My sunset routine works some days but skips others. Is this a known bug?

A: Yes. Sporadic failures after Amazon server-side updates are documented in user forums. If all local settings are correct, open a support ticket with Amazon and ask them to verify the sunset calculation for your address. Recreating the routine from scratch sometimes resolves it.

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