funding fee

For endpoint “/fapi/v1/fundingRate”, I receive some data like this …
{‘symbol’: ‘BTCUSDT’, ‘fundingTime’: 1668556800011, ‘fundingRate’: ‘-0.00013216’}
The ‘fundingTime’ is not exactly at 1668556800000. Does this means that the snapshot time for calculating funding fee is at 1668556800011 other than 1668556800000, which has some time delay (round 11ms).

fundingTime is the time set to process the funding, the rate should be from 1668556800000.