https://www.w3.org/TR/NOTE-datetime
2019-07-16T12:00:00Z = utc time
YYYY-MM-DDThh:mm:ss.sTZD
TZD can be Z or +hh:mm or -hh:mm
Z = UTC
+08:00 = UTC+8
Time Format
·
https://www.w3.org/TR/NOTE-datetime
2019-07-16T12:00:00Z = utc time
YYYY-MM-DDThh:mm:ss.sTZD
TZD can be Z or +hh:mm or -hh:mm
Z = UTC
+08:00 = UTC+8