Date field saved as default timezone

looks like something along this line. elk looks like have release this in 7.5

https://www.elastic.co/blog/converting-local-time-to-iso-8601-time-in-elasticsearch?ultron=dec-2019&blade=newsletter&hulk=email&mkt_tok=eyJpIjoiT1RkbE16ZzJOMlU1T1RnMSIsInQiOiJ4NmZySmFLS05xK1ZLd1dxQzZqbHRnSVRhb0YzWHg0VUJBMzB1NUpCZTFPdzN0ZXFTODhiOFFUdnQ0WTVYRUs1a0l5a2ZFanEzdDBtaU11dTRXNnB6N2txTUNzYlJHTTJadWloQit5SXZlN01TSFdZYVZqZUc4K2h6YWYrWjQrYSJ9