Please clarify what means field updateTime at daily-account-snapshot-user_data

Here is the api

It returns
for futures
Imagine 1576281599000 is 2020-08-11 01:59:59.000000
How should I interpret it? Is it snapshot of 2020-08-10 (previous closed day) ?

Hi. The update time represents the moment account balance is collected. Since this API does not return the real time data, the updateTime can help the user identify the freshness of data. For example, when querying daily account snapshot API with type = FUTURES, the response includes 5 objects, they are the snapshots from the past 5 days.