Dates and time

In our API, dates and times can be provided in two possible formats: ISO 8601 in UTC and UTC milliseconds. Most often, you will encounter the first format:

{ "created_at": "2026-08-21T10:00:00Z" }

However, there is currently one exception in the project: analytics requests for a specific time range. Analytics is the only place where we require UTC milliseconds from you to specify the time range:

?start_date=1755734400000&end_date=1756339200000&timezone=Europe/Belgrade

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Working with the API