I have not been able to find an answer in the docs, and since the lowest level of aggregation is daily I cannot figure it out from the data. If I use the Google trends API (or trends.google.com), what is the time zone for the underlying data used in the aggregation? Is it UTC, my local time zone, the time zone of the country where the search was conducted?
2 Answers
The data is aggregated as full UTC days. It used to be mentioned in the help center for Trends.
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