I use python to call get_timeseries for getting one day data,but it return so many! I don't know how to fix this problem.
It is a bug with an underlying time series service when queried for holidays, as mentioned in this question.
It works fine with this query.
data = ek.get_timeseries(["GBP="],fields=["TIMESTAMP","CLOSE"],start_date="2018-04-20T20:59:59", end_date="2018-04-22T20:36:38", interval="minute")