date Time Zone
Current system time of RICOH THETA. Setting another options will result in an error.
With RICOH THETA X camera.setOptions can be changed only when Date/time setting is AUTO in menu UI.
Time format YYYY:MM:DD hh:mm:ss+(-)hh:mm hh is in 24-hour time, +(-)hh:mm is the time zone. e.g. 2014:05:18 01:04:29+08:00