from elasticsearch API document, it specify the timezone of date histogram aggregation https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-datehistogram-aggregation.html#datehistogram-aggregation-time-zone
from elasticsearch API document, it specify the timezone of date histogram aggregation
https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-datehistogram-aggregation.html#datehistogram-aggregation-time-zone