Lighting schedule: midnight boundaries and manual overrides

Use fictional rules and timestamps to check overnight intervals and the precedence of a manual override.

Execution environment and usage

AI / software

Gemini

Where to operate

Ordinary text chat in the Gemini consumer web app at gemini.google.com. This card uses manually supplied text only.

Getting started

  1. Prefer an adult personal Google account and check regional/account eligibility first. Do not buy a plan for this exercise.
  2. Paste the fictional fixture into ordinary chat, or substitute authorized de-identified short text. Connect no external services.
  3. Compare output with the human acceptance checks. Preserve errors, gaps and unknowns for review.

Setup and plan requirements

Official web documentation checked 2026-11-11 lists Hong Kong, Macau and Taiwan, plus Simplified, Traditional and Hong Kong Chinese and English. An adult personal account is our recommended exercise scope, not a claim that all child, school or work accounts qualify. Personal/school accounts generally require 13 or the local applicable age; work accounts have separate 18+, administrator and plan conditions. Child/Family Link documentation contains inconsistent wording and needs separate verification.

Prompt portability limits

Start with standard free access; no subscription is required for this card. Taiwan advertises NT$0/month for free access. Local Hong Kong/Macau paid prices are unverified, so no local paid price is promised. Compute limits vary with model, complexity and conversation length, including five-hour and weekly caps; no fixed number of prompts is guaranteed. Wait if limited rather than assuming an upgrade is needed. Mobile, API, CLI and the original automation have separate eligibility, account and cost requirements.

Usage limitations

Documentation review is not a test from the three regions. Prompts, account access, model output and the original full workflow were not tested. Use fictional or de-identified data, never confidential inputs; some data can receive human review. Disabling activity is not zero retention: relevant chats can remain for 72 hours and undergo safety review. A person must verify outputs; text advice is not execution.

Environment sources

適用情境 / When to use

Use fictional rules and timestamps to check overnight intervals and the precedence of a manual override. Adds overnight endpoint tests and a missing-precedence variant that must remain unresolved. Fictional fixture, not a real usage record: One fixed timezone, no daylight saving. Daily 22:00 inclusive to next-day 06:00 exclusive: 20% brightness; otherwise 70%. Manual override takes precedence: Nov 11 23:50 inclusive to Nov 12 00:20 exclusive holds 60%. Check Nov 11 21:59, 22:00, 23:55 and Nov 12 00:20, 05:59, 06:00. Second test: remove the manual-override precedence setting and reassess Nov 11 23:55.

步驟 / Steps

  1. Preserve input conditions and existing labels and use the fictional fixture with the parameterized prompt in text chat.
  2. Human check, in listed order: 70%, 20%, 60%, 20%, 20%, 70%. The override has expired at 00:20; night mode ends at 06:00. If precedence is removed, flag 23:55 as unresolved rather than choose a value.
  3. If output fails a check, record the discrepancy and revise the request for human review. Never present an expected answer as observed model output.

提示詞 / Prompt

Using [rules, timezone, dates, interval inclusivity, precedence, test timestamps], list expected brightness, governing rule and reason. Resolve overnight intervals; ask rather than invent missing precedence. Check start/end boundaries and override expiry. This is a paper test: create no automation, control no devices and claim no execution. Second test: remove the manual-override precedence setting and reassess Nov 11 23:55.

Fictional fixture, not a real usage record: One fixed timezone, no daylight saving. Daily 22:00 inclusive to next-day 06:00 exclusive: 20% brightness; otherwise 70%. Manual override takes precedence: Nov 11 23:50 inclusive to Nov 12 00:20 exclusive holds 60%. Check Nov 11 21:59, 22:00, 23:55 and Nov 12 00:20, 05:59, 06:00. Second test: remove the manual-override precedence setting and reassess Nov 11 23:55.

留意事項 / Cautions

  • Platform and region: ordinary Gemini web text chat. Official lists include Hong Kong, Macau, Taiwan, Chinese variants and English. Documentation checked 2026-11-11; local connections were not tested.
  • Plan and account: prefer an adult personal account. Standard free access is a starting point, with variable usage caps and no required subscription. Taiwan advertises NT$0/month free access; Hong Kong/Macau paid prices are unverified. No particular model or prompt count is guaranteed. Work, school and child accounts need separate checks.
  • No original toolchain is connected. Web availability does not establish mobile, API, CLI or original-automation access. Never supply confidential data. Activity-off chats can still remain for 72 hours and receive safety review.
  • Use fictional lighting rules only, not locks, alarms, heating or real household routines.

來源限制 / Evidence limits

Tom’s Guide describes Alexa+ natural-language lighting/thermostat routines and inconsistent agent actions. We adapt only rule planning, without validating Alexa+ regional availability or historical pricing and without connecting devices. Source published: 2025-11-02; checked: 2026-11-11. The original source provides inspiration, not validation of this exercise. Its toolchain, regional services and plans have not been reproduced. This card uses only the documented Gemini web text environment.

流程說明 / Workflow note

Original editorial adaptation, not a newly discovered use case or the source author’s verbatim workflow. Source-reported outcomes do not guarantee this exercise. Prompts were not tested. Adapted from this existing case: https://hkfrees.com/ai/case/reported-alexa-routine-preview/?lang=en Adds overnight endpoint tests and a missing-precedence variant that must remain unresolved. Open this card’s title for the official environment-source links and human acceptance steps on its full case page.

原始工具組合 / Original tool stack

Alexa+; connected smart-home lights and thermostat

Source publication date: 2025-11-02

Source checked: 2026-11-11

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