8 pages · Time and attribution
The wrong unit is a 1970 event
Vendors accept the wrong clock and still 200. Date.now() is 13 digits. Meta wants 10. Amplitude wants 13. GA4 wants 16. These pages are the unit, the window, and the late-event budget.
- Seconds, milliseconds, microseconds, ISO. Pick one. Time · engineers
- Ingestion time is not event time Time · engineers, PMs
- The window is a report setting, not a pixel Time · marketers, PMs, engineers
- Unix time has no timezone. Your shop does. Time · engineers, marketers
- Too late for the graph, still true in finance Time · engineers, marketers, PMs
- event_time in the future is a bug Time · engineers
- View-through is an impression credit, not a click Time · marketers, PMs, engineers
- Last click is a story. Data-driven is a model. Time · marketers, PMs, engineers