A datetime's hour.
The hour component of an OI time.
|Datetime||A datetime in OI internal format. (REQUIRED)|
The "Hour" service returns the hour component of an OI datetime. The result is an integer between 0 and 23 with 0 being the midnight hour and 23 being the 11pm hour. If an OI datetime represents March 30, 1978 at 12:41:08pm, this service would return 12. If the datetime is August 13, 3003 at 4:23:32pm, this service would return 16. If the given datetime not valid, "" is returned.