Tries to coerce value into a Date. If value is a number or a string that represents a number, the number is treated as the number of milliseconds since the epoch, January 1, 1970, 00:00:00 GMT. If value is a string, it is parsed to see if it represents a date in one of these two formats: "yyyyMMdd.HHmmssSSSZ" or "yyyy-MM-dd HH:mm:ss". If not, type casting fails.The failover value must be a number or string with the same restrictions.

toDate( value, [failover] )