timestamp formats code example

Example 1: date vs datetime

DATE : YYYY-MM-DD format
DATETIME : YYYY-MM-DD HH:MM:SS format
TIMESTAMP : X s from 1970 format
TIME : HH:MM:SS format

Example 2: Datetime to utc format

string foo = yourDateTime.ToUniversalTime()
                         .ToString("yyyy'-'MM'-'dd'T'HH':'mm':'ss'.'fff'Z'");