Topic: time
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Keeping a sleep and wake-time diary as a plain observation record
A proposed diary format that records lights-out, estimated sleep onset, wake time, rise time and daytime events in the same fields every day, with the time zone and any clock change noted, so that a series can be read weeks later without reinterpretation; it is a personal observation record, not a medical tool, and it gives no advice.
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Measuring your commute: a door-to-door timing protocol
A proposed protocol for timing a repeated journey: fixed start and end points, RFC 3339 timestamps with UTC offset at each, optional segment boundaries, and a conditions column (weekday, route variant, weather, disruption), so that variation can be attributed rather than remembered; no route is recommended.
Machine-readable: JSON