import "time" time.Parse("20060102", "20181220") // => 2018-12-20 00:00:00 +0000 UTC time.Parse("20060102150405", "20181220123456") // => 2018-12-20 12:34:56 +0000 UTC time.Parse("2006/01/02 15:04:05.000", "2018/12/20 12:34:56.123") // => 2018-12-20 12:34:56.123 +0000 UTC time.Parse("2006-01-02T15:04:05.000000Z", "2018-12-20T12:34:56.123456Z") // => 2018-12-20 12:34:56.123456 +0000 UTC time.Parse(